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OHAT_2007_8_25 | Which cell structure carries out a function for a cell that is similar to the function that bark carries out for a tree? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"cell wall",
"nucleus",
"chloroplast",
"mitochondrion"
]
} | A | Question: Which cell structure carries out a function for a cell that is similar to the function that bark carries out for a tree?
(A) cell wall
(B) nucleus
(C) chloroplast
(D) mitochondrion
| Answer: (A) cell wall | Answer: (B) nucleus | Question: Which cell structure carries out a function for a cell that is similar to the function that bark carries out for a tree?
(A) cell wall
(B) nucleus
(C) chloroplast
(D) mitochondrion
Answer: (A) cell wall |
Mercury_7081515 | The number of squirrels in a certain ecosystem changes over time. These changes can be represented as a number of connected data points. Which method would a student most likely use to show this information? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"pie chart",
"line graph",
"pictogram",
"data table"
]
} | B | Question: The number of squirrels in a certain ecosystem changes over time. These changes can be represented as a number of connected data points. Which method would a student most likely use to show this information?
(A) pie chart
(B) line graph
(C) pictogram
(D) data table
| Answer: (B) line graph | Answer: (A) pie chart | Question: The number of squirrels in a certain ecosystem changes over time. These changes can be represented as a number of connected data points. Which method would a student most likely use to show this information?
(A) pie chart
(B) line graph
(C) pictogram
(D) data table
Answer: (B) line graph |
Mercury_7133840 | Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"A new substance was formed.",
"The gas pressure was released from the can.",
"The sugar in the soda turned into a gas.",
"The can absorbed heat from the air."
]
} | B | Question: Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened?
(A) A new substance was formed.
(B) The gas pressure was released from the can.
(C) The sugar in the soda turned into a gas.
(D) The can absorbed heat from the air.
| Answer: (B) The gas pressure was released from the can. | Answer: (C) The sugar in the soda turned into a gas. | Question: Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened?
(A) A new substance was formed.
(B) The gas pressure was released from the can.
(C) The sugar in the soda turned into a gas.
(D) The can absorbed heat from the air.
Answer: (B) The gas pressure was released from the can. |
CSZ10053 | Where is most of Earth's water located? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"glaciers",
"lakes",
"oceans",
"rivers"
]
} | C | Question: Where is most of Earth's water located?
(A) glaciers
(B) lakes
(C) oceans
(D) rivers
| Answer: (C) oceans | Answer: (D) rivers | Question: Where is most of Earth's water located?
(A) glaciers
(B) lakes
(C) oceans
(D) rivers
Answer: (C) oceans |
Mercury_7144848 | Investigations were performed to test several methods of keeping petals from falling off flowers that had been cut. Which is the most likely reason for this investigation? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"to test a hypothesis",
"to form a theory",
"to produce a scientific paper",
"to change previous results"
]
} | A | Question: Investigations were performed to test several methods of keeping petals from falling off flowers that had been cut. Which is the most likely reason for this investigation?
(A) to test a hypothesis
(B) to form a theory
(C) to produce a scientific paper
(D) to change previous results
| Answer: (A) to test a hypothesis | Answer: (B) to form a theory | Question: Investigations were performed to test several methods of keeping petals from falling off flowers that had been cut. Which is the most likely reason for this investigation?
(A) to test a hypothesis
(B) to form a theory
(C) to produce a scientific paper
(D) to change previous results
Answer: (A) to test a hypothesis |
Mercury_7001820 | Two seismographs are placed 500 km from an active fault line, one on each side of the active fault line. During an earthquake, what most likely accounts for the different readings on the seismographs? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the pull of gravity on the waves",
"the interaction of light with waves",
"the differences in the strength of the waves' origins",
"the different media through which the waves travel"
]
} | D | Question: Two seismographs are placed 500 km from an active fault line, one on each side of the active fault line. During an earthquake, what most likely accounts for the different readings on the seismographs?
(A) the pull of gravity on the waves
(B) the interaction of light with waves
(C) the differences in the strength of the waves' origins
(D) the different media through which the waves travel
| Answer: (D) the different media through which the waves travel | Answer: (C) the differences in the strength of the waves' origins | Question: Two seismographs are placed 500 km from an active fault line, one on each side of the active fault line. During an earthquake, what most likely accounts for the different readings on the seismographs?
(A) the pull of gravity on the waves
(B) the interaction of light with waves
(C) the differences in the strength of the waves' origins
(D) the different media through which the waves travel
Answer: (D) the different media through which the waves travel |
ACTAAP_2011_5_11 | Scientists dig in a dry area at the bottom of a mountain range. Fossilized shells of freshwater mussels are found in the area. Which is a likely conclusion that scientists will draw based on this evidence? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Rivers once flowed through the area.",
"Volcanoes were once active in the area.",
"The ocean shoreline once reached this area.",
"Floods were a common occurrence in this area."
]
} | A | Question: Scientists dig in a dry area at the bottom of a mountain range. Fossilized shells of freshwater mussels are found in the area. Which is a likely conclusion that scientists will draw based on this evidence?
(A) Rivers once flowed through the area.
(B) Volcanoes were once active in the area.
(C) The ocean shoreline once reached this area.
(D) Floods were a common occurrence in this area.
| Answer: (A) Rivers once flowed through the area. | Answer: (D) Floods were a common occurrence in this area. | Question: Scientists dig in a dry area at the bottom of a mountain range. Fossilized shells of freshwater mussels are found in the area. Which is a likely conclusion that scientists will draw based on this evidence?
(A) Rivers once flowed through the area.
(B) Volcanoes were once active in the area.
(C) The ocean shoreline once reached this area.
(D) Floods were a common occurrence in this area.
Answer: (A) Rivers once flowed through the area. |
Mercury_188965 | An apple appears red when struck by white light. This appearance is because the red light is reflected and the other colors are absorbed. What color will this apple appear to be when struck by blue light? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"black",
"blue",
"red",
"white"
]
} | A | Question: An apple appears red when struck by white light. This appearance is because the red light is reflected and the other colors are absorbed. What color will this apple appear to be when struck by blue light?
(A) black
(B) blue
(C) red
(D) white
| Answer: (A) black | Answer: (B) blue | Question: An apple appears red when struck by white light. This appearance is because the red light is reflected and the other colors are absorbed. What color will this apple appear to be when struck by blue light?
(A) black
(B) blue
(C) red
(D) white
Answer: (A) black |
NYSEDREGENTS_2009_8_3 | In New York State, an observer will usually see the Sun rise in the | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"north",
"south",
"east",
"west"
]
} | 3 | Question: In New York State, an observer will usually see the Sun rise in the
(1) north
(2) south
(3) east
(4) west
| Answer: (3) east | Answer: (4) west | Question: In New York State, an observer will usually see the Sun rise in the
(1) north
(2) south
(3) east
(4) west
Answer: (3) east |
Mercury_SC_410875 | Burning coal and natural gas are ways to produce electricity. Both coal and natural gas are nonrenewable resources. Which is an example of producing electricity using a renewable source of energy? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"using food pieces to make compost",
"gliding a boat through the water using sails",
"putting an energy-saving lightbulb in a lamp",
"heating a home with energy collected by solar panels"
]
} | D | Question: Burning coal and natural gas are ways to produce electricity. Both coal and natural gas are nonrenewable resources. Which is an example of producing electricity using a renewable source of energy?
(A) using food pieces to make compost
(B) gliding a boat through the water using sails
(C) putting an energy-saving lightbulb in a lamp
(D) heating a home with energy collected by solar panels
| Answer: (D) heating a home with energy collected by solar panels | Answer: (A) using food pieces to make compost | Question: Burning coal and natural gas are ways to produce electricity. Both coal and natural gas are nonrenewable resources. Which is an example of producing electricity using a renewable source of energy?
(A) using food pieces to make compost
(B) gliding a boat through the water using sails
(C) putting an energy-saving lightbulb in a lamp
(D) heating a home with energy collected by solar panels
Answer: (D) heating a home with energy collected by solar panels |
Mercury_SC_401258 | When liquid water freezes, it forms ice. What is the physical state of an ice cube? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"gas",
"solid",
"liquid",
"plasma"
]
} | B | Question: When liquid water freezes, it forms ice. What is the physical state of an ice cube?
(A) gas
(B) solid
(C) liquid
(D) plasma
| Answer: (B) solid | Answer: (C) liquid | Question: When liquid water freezes, it forms ice. What is the physical state of an ice cube?
(A) gas
(B) solid
(C) liquid
(D) plasma
Answer: (B) solid |
Mercury_SC_400372 | A student uses a hand lens to observe which of these objects? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a mountain",
"the Moon",
"an insect",
"bacteria"
]
} | C | Question: A student uses a hand lens to observe which of these objects?
(A) a mountain
(B) the Moon
(C) an insect
(D) bacteria
| Answer: (C) an insect | Answer: (D) bacteria | Question: A student uses a hand lens to observe which of these objects?
(A) a mountain
(B) the Moon
(C) an insect
(D) bacteria
Answer: (C) an insect |
Mercury_405133 | Which type of rock would most likely contain a fossil? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"metamorphic rock",
"sedimentary rock",
"igneous rock",
"molten rock"
]
} | B | Question: Which type of rock would most likely contain a fossil?
(A) metamorphic rock
(B) sedimentary rock
(C) igneous rock
(D) molten rock
| Answer: (B) sedimentary rock | Answer: (C) igneous rock | Question: Which type of rock would most likely contain a fossil?
(A) metamorphic rock
(B) sedimentary rock
(C) igneous rock
(D) molten rock
Answer: (B) sedimentary rock |
Mercury_410744 | Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"rivers rising due to storms and floods",
"evaporation of water from the leaves of a plant",
"weathering of a rock to form small rocks and sand",
"movement of small pieces of rock by flowing water"
]
} | C | Question: Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete?
(A) rivers rising due to storms and floods
(B) evaporation of water from the leaves of a plant
(C) weathering of a rock to form small rocks and sand
(D) movement of small pieces of rock by flowing water
| Answer: (C) weathering of a rock to form small rocks and sand | Answer: (D) movement of small pieces of rock by flowing water | Question: Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete?
(A) rivers rising due to storms and floods
(B) evaporation of water from the leaves of a plant
(C) weathering of a rock to form small rocks and sand
(D) movement of small pieces of rock by flowing water
Answer: (C) weathering of a rock to form small rocks and sand |
Mercury_405938 | Where do many of the basic life functions take place in organisms? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"brain",
"cells",
"heart",
"nerves"
]
} | B | Question: Where do many of the basic life functions take place in organisms?
(A) brain
(B) cells
(C) heart
(D) nerves
| Answer: (B) cells | Answer: (A) brain | Question: Where do many of the basic life functions take place in organisms?
(A) brain
(B) cells
(C) heart
(D) nerves
Answer: (B) cells |
NYSEDREGENTS_2009_4_14 | Which physical structure would best help a bear to survive a winter in New York State? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"big ears",
"black nose",
"thick fur",
"brown eyes"
]
} | C | Question: Which physical structure would best help a bear to survive a winter in New York State?
(A) big ears
(B) black nose
(C) thick fur
(D) brown eyes
| Answer: (C) thick fur | Answer: (A) big ears | Question: Which physical structure would best help a bear to survive a winter in New York State?
(A) big ears
(B) black nose
(C) thick fur
(D) brown eyes
Answer: (C) thick fur |
Mercury_SC_402081 | What is made when sugar is dissolved in water? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a colloid",
"a solution",
"a suspension",
"an evaporation"
]
} | B | Question: What is made when sugar is dissolved in water?
(A) a colloid
(B) a solution
(C) a suspension
(D) an evaporation
| Answer: (B) a solution | Answer: (C) a suspension | Question: What is made when sugar is dissolved in water?
(A) a colloid
(B) a solution
(C) a suspension
(D) an evaporation
Answer: (B) a solution |
Mercury_7093118 | Gasoline for cars is produced from fossil fuels. Using gasoline can most likely lead to which environmental problem? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"soil erosion",
"water pollution",
"wildlife extinction",
"global warming"
]
} | D | Question: Gasoline for cars is produced from fossil fuels. Using gasoline can most likely lead to which environmental problem?
(A) soil erosion
(B) water pollution
(C) wildlife extinction
(D) global warming
| Answer: (D) global warming | Answer: (B) water pollution | Question: Gasoline for cars is produced from fossil fuels. Using gasoline can most likely lead to which environmental problem?
(A) soil erosion
(B) water pollution
(C) wildlife extinction
(D) global warming
Answer: (D) global warming |
MCAS_2016_8_9 | Which of the following is a cause of the ocean levels periodically rising and then falling? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the slight tilt of the Moon",
"the force of gravity from the Moon",
"the convection within Earth's mantle",
"the revolution of Earth around the Sun"
]
} | B | Question: Which of the following is a cause of the ocean levels periodically rising and then falling?
(A) the slight tilt of the Moon
(B) the force of gravity from the Moon
(C) the convection within Earth's mantle
(D) the revolution of Earth around the Sun
| Answer: (B) the force of gravity from the Moon | Answer: (A) the slight tilt of the Moon | Question: Which of the following is a cause of the ocean levels periodically rising and then falling?
(A) the slight tilt of the Moon
(B) the force of gravity from the Moon
(C) the convection within Earth's mantle
(D) the revolution of Earth around the Sun
Answer: (B) the force of gravity from the Moon |
Mercury_188633 | A scientist is searching for areas where new solar systems might form. What feature is the scientist looking for? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a star similar to our Sun",
"a cloud of dust and gas",
"an oxygen-rich atmosphere",
"a gravitational acceleration of 9.8 m/sec2"
]
} | B | Question: A scientist is searching for areas where new solar systems might form. What feature is the scientist looking for?
(A) a star similar to our Sun
(B) a cloud of dust and gas
(C) an oxygen-rich atmosphere
(D) a gravitational acceleration of 9.8 m/sec2
| Answer: (B) a cloud of dust and gas | Answer: (C) an oxygen-rich atmosphere | Question: A scientist is searching for areas where new solar systems might form. What feature is the scientist looking for?
(A) a star similar to our Sun
(B) a cloud of dust and gas
(C) an oxygen-rich atmosphere
(D) a gravitational acceleration of 9.8 m/sec2
Answer: (B) a cloud of dust and gas |
Mercury_7043750 | About how often is a full moon observed from Earth's surface? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"each week",
"once a month",
"every two weeks",
"once each leap year"
]
} | B | Question: About how often is a full moon observed from Earth's surface?
(A) each week
(B) once a month
(C) every two weeks
(D) once each leap year
| Answer: (B) once a month | Answer: (A) each week | Question: About how often is a full moon observed from Earth's surface?
(A) each week
(B) once a month
(C) every two weeks
(D) once each leap year
Answer: (B) once a month |
Mercury_SC_LBS10945 | When animals use energy, they produce | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"nitrogen",
"iron sulfide",
"oxygen",
"carbon dioxide"
]
} | D | Question: When animals use energy, they produce
(A) nitrogen
(B) iron sulfide
(C) oxygen
(D) carbon dioxide
| Answer: (D) carbon dioxide | Answer: (C) oxygen | Question: When animals use energy, they produce
(A) nitrogen
(B) iron sulfide
(C) oxygen
(D) carbon dioxide
Answer: (D) carbon dioxide |
ACTAAP_2009_7_7 | Which would provide evidence of seafloor spreading? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"higher levels of salinity in the ocean water",
"stronger currents at the surface of the ocean",
"cooled magma found on the edge of the plates",
"greater reproduction levels for organisms at the bottom of the ocean"
]
} | C | Question: Which would provide evidence of seafloor spreading?
(A) higher levels of salinity in the ocean water
(B) stronger currents at the surface of the ocean
(C) cooled magma found on the edge of the plates
(D) greater reproduction levels for organisms at the bottom of the ocean
| Answer: (C) cooled magma found on the edge of the plates | Answer: (B) stronger currents at the surface of the ocean | Question: Which would provide evidence of seafloor spreading?
(A) higher levels of salinity in the ocean water
(B) stronger currents at the surface of the ocean
(C) cooled magma found on the edge of the plates
(D) greater reproduction levels for organisms at the bottom of the ocean
Answer: (C) cooled magma found on the edge of the plates |
MCAS_2000_8_5 | Mitosis occurs in living things when a cell divides to produce two cells. Compared to the original cell, how many chromosomes are in each of the resulting cells? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"half as many",
"the same number",
"twice as many",
"an unpredictable number"
]
} | B | Question: Mitosis occurs in living things when a cell divides to produce two cells. Compared to the original cell, how many chromosomes are in each of the resulting cells?
(A) half as many
(B) the same number
(C) twice as many
(D) an unpredictable number
| Answer: (B) the same number | Answer: (C) twice as many | Question: Mitosis occurs in living things when a cell divides to produce two cells. Compared to the original cell, how many chromosomes are in each of the resulting cells?
(A) half as many
(B) the same number
(C) twice as many
(D) an unpredictable number
Answer: (B) the same number |
Mercury_7138583 | Which organ directly works to protect the human body from disease? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"heart",
"kidney",
"pancreas",
"skin"
]
} | D | Question: Which organ directly works to protect the human body from disease?
(A) heart
(B) kidney
(C) pancreas
(D) skin
| Answer: (D) skin | Answer: (A) heart | Question: Which organ directly works to protect the human body from disease?
(A) heart
(B) kidney
(C) pancreas
(D) skin
Answer: (D) skin |
AIMS_2009_8_4 | Steven went to a farm and picked a bright red tomato from a broken branch on the plant. The tomato had a rotten spot with a worm inside of it. Instead of eating the tomato, Steven decided to plant the seeds and grow new tomato plants. Which characteristic of the tomato plant is inherited and could change over several generations? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"color of the skin",
"size of rotten spots",
"length of worms inside",
"number of broken branches"
]
} | A | Question: Steven went to a farm and picked a bright red tomato from a broken branch on the plant. The tomato had a rotten spot with a worm inside of it. Instead of eating the tomato, Steven decided to plant the seeds and grow new tomato plants. Which characteristic of the tomato plant is inherited and could change over several generations?
(A) color of the skin
(B) size of rotten spots
(C) length of worms inside
(D) number of broken branches
| Answer: (A) color of the skin | Answer: (B) size of rotten spots | Question: Steven went to a farm and picked a bright red tomato from a broken branch on the plant. The tomato had a rotten spot with a worm inside of it. Instead of eating the tomato, Steven decided to plant the seeds and grow new tomato plants. Which characteristic of the tomato plant is inherited and could change over several generations?
(A) color of the skin
(B) size of rotten spots
(C) length of worms inside
(D) number of broken branches
Answer: (A) color of the skin |
Mercury_SC_401231 | Many leaves appear green because the leaves | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"resist green light.",
"bend all colors except green.",
"reflect green light.",
"reflect all colors except green."
]
} | C | Question: Many leaves appear green because the leaves
(A) resist green light.
(B) bend all colors except green.
(C) reflect green light.
(D) reflect all colors except green.
| Answer: (C) reflect green light. | Answer: (A) resist green light. | Question: Many leaves appear green because the leaves
(A) resist green light.
(B) bend all colors except green.
(C) reflect green light.
(D) reflect all colors except green.
Answer: (C) reflect green light. |
Mercury_7271338 | Which of these is the best definition of heredity? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the transfer of learning from one generation to the next",
"the transfer of visible features from one generation to the next",
"the passage of dominant genes from one generation to the next",
"the passage of genetic information from one generation to the next"
]
} | D | Question: Which of these is the best definition of heredity?
(A) the transfer of learning from one generation to the next
(B) the transfer of visible features from one generation to the next
(C) the passage of dominant genes from one generation to the next
(D) the passage of genetic information from one generation to the next
| Answer: (D) the passage of genetic information from one generation to the next | Answer: (C) the passage of dominant genes from one generation to the next | Question: Which of these is the best definition of heredity?
(A) the transfer of learning from one generation to the next
(B) the transfer of visible features from one generation to the next
(C) the passage of dominant genes from one generation to the next
(D) the passage of genetic information from one generation to the next
Answer: (D) the passage of genetic information from one generation to the next |
MCAS_2005_9_2-v1 | Which of the following describes how a microwave oven heats food? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"The oven's interior reflects heat onto the food.",
"The oven's interior, like a lens, focuses heat onto the food.",
"Water molecules in the food reflect energy from microwave radiation.",
"Water molecules in the food absorb the energy of microwave radiation."
]
} | D | Question: Which of the following describes how a microwave oven heats food?
(A) The oven's interior reflects heat onto the food.
(B) The oven's interior, like a lens, focuses heat onto the food.
(C) Water molecules in the food reflect energy from microwave radiation.
(D) Water molecules in the food absorb the energy of microwave radiation.
| Answer: (D) Water molecules in the food absorb the energy of microwave radiation. | Answer: (C) Water molecules in the food reflect energy from microwave radiation. | Question: Which of the following describes how a microwave oven heats food?
(A) The oven's interior reflects heat onto the food.
(B) The oven's interior, like a lens, focuses heat onto the food.
(C) Water molecules in the food reflect energy from microwave radiation.
(D) Water molecules in the food absorb the energy of microwave radiation.
Answer: (D) Water molecules in the food absorb the energy of microwave radiation. |
NYSEDREGENTS_2005_8_30 | Which three systems of the human body function together to move and control body parts? | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"nervous, skeletal, and muscular",
"muscular, endocrine, and excretory",
"digestive, excretory, and reproductive",
"circulatory, endocrine, and respiratory"
]
} | 1 | Question: Which three systems of the human body function together to move and control body parts?
(1) nervous, skeletal, and muscular
(2) muscular, endocrine, and excretory
(3) digestive, excretory, and reproductive
(4) circulatory, endocrine, and respiratory
| Answer: (1) nervous, skeletal, and muscular | Answer: (2) muscular, endocrine, and excretory | Question: Which three systems of the human body function together to move and control body parts?
(1) nervous, skeletal, and muscular
(2) muscular, endocrine, and excretory
(3) digestive, excretory, and reproductive
(4) circulatory, endocrine, and respiratory
Answer: (1) nervous, skeletal, and muscular |
Mercury_7166933 | Astronomers have found evidence for the existence of a super-massive black hole in the center of the giant elliptical galaxy M87. What is thought to cause black holes to form? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the death of a low-mass star",
"the gravity of a large nebula",
"the collapse of a high-mass star",
"the combining of material from planets"
]
} | C | Question: Astronomers have found evidence for the existence of a super-massive black hole in the center of the giant elliptical galaxy M87. What is thought to cause black holes to form?
(A) the death of a low-mass star
(B) the gravity of a large nebula
(C) the collapse of a high-mass star
(D) the combining of material from planets
| Answer: (C) the collapse of a high-mass star | Answer: (A) the death of a low-mass star | Question: Astronomers have found evidence for the existence of a super-massive black hole in the center of the giant elliptical galaxy M87. What is thought to cause black holes to form?
(A) the death of a low-mass star
(B) the gravity of a large nebula
(C) the collapse of a high-mass star
(D) the combining of material from planets
Answer: (C) the collapse of a high-mass star |
NYSEDREGENTS_2007_8_10 | A research team wanted to produce a smaller variety of German shepherd dogs. They mated the smallest dogs from different litters for several generations. This is an example of which concept? | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"extinction",
"mutation",
"selective breeding",
"natural selection"
]
} | 3 | Question: A research team wanted to produce a smaller variety of German shepherd dogs. They mated the smallest dogs from different litters for several generations. This is an example of which concept?
(1) extinction
(2) mutation
(3) selective breeding
(4) natural selection
| Answer: (3) selective breeding | Answer: (4) natural selection | Question: A research team wanted to produce a smaller variety of German shepherd dogs. They mated the smallest dogs from different litters for several generations. This is an example of which concept?
(1) extinction
(2) mutation
(3) selective breeding
(4) natural selection
Answer: (3) selective breeding |
Mercury_SC_410961 | A class learns about weather. The students in the class measure the outside air temperature at the same time each day. Which way of measuring the temperature would provide the most accurate data? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"taking the measurement in the shade",
"placing the thermometer on the ground",
"taking a measurement using a different tool each day",
"recording the measurements from three thermometers"
]
} | D | Question: A class learns about weather. The students in the class measure the outside air temperature at the same time each day. Which way of measuring the temperature would provide the most accurate data?
(A) taking the measurement in the shade
(B) placing the thermometer on the ground
(C) taking a measurement using a different tool each day
(D) recording the measurements from three thermometers
| Answer: (D) recording the measurements from three thermometers | Answer: (C) taking a measurement using a different tool each day | Question: A class learns about weather. The students in the class measure the outside air temperature at the same time each day. Which way of measuring the temperature would provide the most accurate data?
(A) taking the measurement in the shade
(B) placing the thermometer on the ground
(C) taking a measurement using a different tool each day
(D) recording the measurements from three thermometers
Answer: (D) recording the measurements from three thermometers |
Mercury_7263725 | Earth's magnetosphere is not uniformly shaped. It is compressed on the side facing the Sun and has a long tail extending away from the Sun. Which phenomenon is responsible for this shape? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"centripetal force of Earth's rotation",
"gravitational attraction between Earth and the Sun",
"solar winds bringing high-energy particles toward Earth",
"differences in the distance between Earth and the Sun during Earth's orbit"
]
} | C | Question: Earth's magnetosphere is not uniformly shaped. It is compressed on the side facing the Sun and has a long tail extending away from the Sun. Which phenomenon is responsible for this shape?
(A) centripetal force of Earth's rotation
(B) gravitational attraction between Earth and the Sun
(C) solar winds bringing high-energy particles toward Earth
(D) differences in the distance between Earth and the Sun during Earth's orbit
| Answer: (C) solar winds bringing high-energy particles toward Earth | Answer: (B) gravitational attraction between Earth and the Sun | Question: Earth's magnetosphere is not uniformly shaped. It is compressed on the side facing the Sun and has a long tail extending away from the Sun. Which phenomenon is responsible for this shape?
(A) centripetal force of Earth's rotation
(B) gravitational attraction between Earth and the Sun
(C) solar winds bringing high-energy particles toward Earth
(D) differences in the distance between Earth and the Sun during Earth's orbit
Answer: (C) solar winds bringing high-energy particles toward Earth |
TIMSS_2007_4_pg99 | Which living organism makes its own food using sunlight? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"lizard",
"tree",
"deer",
"hawk"
]
} | B | Question: Which living organism makes its own food using sunlight?
(A) lizard
(B) tree
(C) deer
(D) hawk
| Answer: (B) tree | Answer: (A) lizard | Question: Which living organism makes its own food using sunlight?
(A) lizard
(B) tree
(C) deer
(D) hawk
Answer: (B) tree |
Mercury_182858 | Who was the first person to base a system of classification on organisms having similar structures? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Aristotle",
"Darwin",
"Einstein",
"Linnaeus"
]
} | D | Question: Who was the first person to base a system of classification on organisms having similar structures?
(A) Aristotle
(B) Darwin
(C) Einstein
(D) Linnaeus
| Answer: (D) Linnaeus | Answer: (B) Darwin | Question: Who was the first person to base a system of classification on organisms having similar structures?
(A) Aristotle
(B) Darwin
(C) Einstein
(D) Linnaeus
Answer: (D) Linnaeus |
Mercury_7064540 | Which is a process that converts sunlight energy into a compound that stores chemical energy? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"phototropism",
"photosynthesis",
"respiration",
"pollination"
]
} | B | Question: Which is a process that converts sunlight energy into a compound that stores chemical energy?
(A) phototropism
(B) photosynthesis
(C) respiration
(D) pollination
| Answer: (B) photosynthesis | Answer: (C) respiration | Question: Which is a process that converts sunlight energy into a compound that stores chemical energy?
(A) phototropism
(B) photosynthesis
(C) respiration
(D) pollination
Answer: (B) photosynthesis |
Mercury_7001733 | Which most likely contributed to the extinction of many species and endangered the survival of others? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"pollution",
"habitat destruction",
"an asteroid hitting Earth",
"tectonic plate movement"
]
} | B | Question: Which most likely contributed to the extinction of many species and endangered the survival of others?
(A) pollution
(B) habitat destruction
(C) an asteroid hitting Earth
(D) tectonic plate movement
| Answer: (B) habitat destruction | Answer: (A) pollution | Question: Which most likely contributed to the extinction of many species and endangered the survival of others?
(A) pollution
(B) habitat destruction
(C) an asteroid hitting Earth
(D) tectonic plate movement
Answer: (B) habitat destruction |
TIMSS_1995_8_N6 | Which is the most basic unit of living things? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Cells",
"Bones",
"Tissues",
"Organs"
]
} | A | Question: Which is the most basic unit of living things?
(A) Cells
(B) Bones
(C) Tissues
(D) Organs
| Answer: (A) Cells | Answer: (C) Tissues | Question: Which is the most basic unit of living things?
(A) Cells
(B) Bones
(C) Tissues
(D) Organs
Answer: (A) Cells |
Mercury_SC_416158 | What are the two main jobs of the skeletal system? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"support and protect the body",
"digest food and carry messages for the body",
"get rid of wastes and defend the body from disease",
"sense changes in the environment and carry food through the body"
]
} | A | Question: What are the two main jobs of the skeletal system?
(A) support and protect the body
(B) digest food and carry messages for the body
(C) get rid of wastes and defend the body from disease
(D) sense changes in the environment and carry food through the body
| Answer: (A) support and protect the body | Answer: (C) get rid of wastes and defend the body from disease | Question: What are the two main jobs of the skeletal system?
(A) support and protect the body
(B) digest food and carry messages for the body
(C) get rid of wastes and defend the body from disease
(D) sense changes in the environment and carry food through the body
Answer: (A) support and protect the body |
Mercury_7135870 | Which is an example of a chemical change? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"sand separated from water by filtering",
"water evaporating from a puddle",
"a rock being eroded by wind",
"a nail rusting in water"
]
} | D | Question: Which is an example of a chemical change?
(A) sand separated from water by filtering
(B) water evaporating from a puddle
(C) a rock being eroded by wind
(D) a nail rusting in water
| Answer: (D) a nail rusting in water | Answer: (B) water evaporating from a puddle | Question: Which is an example of a chemical change?
(A) sand separated from water by filtering
(B) water evaporating from a puddle
(C) a rock being eroded by wind
(D) a nail rusting in water
Answer: (D) a nail rusting in water |
Mercury_7218330 | Which of these is a renewable resource found in Nevada? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"zinc metal",
"gravel deposits",
"petroleum products",
"geothermal energy"
]
} | D | Question: Which of these is a renewable resource found in Nevada?
(A) zinc metal
(B) gravel deposits
(C) petroleum products
(D) geothermal energy
| Answer: (D) geothermal energy | Answer: (C) petroleum products | Question: Which of these is a renewable resource found in Nevada?
(A) zinc metal
(B) gravel deposits
(C) petroleum products
(D) geothermal energy
Answer: (D) geothermal energy |
Mercury_7043558 | Which two body systems are involved in inhaling oxygen and exhaling carbon dioxide? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"endocrine and skeletal",
"excretory and nervous",
"circulatory and respiratory",
"digestive and reproductive"
]
} | C | Question: Which two body systems are involved in inhaling oxygen and exhaling carbon dioxide?
(A) endocrine and skeletal
(B) excretory and nervous
(C) circulatory and respiratory
(D) digestive and reproductive
| Answer: (C) circulatory and respiratory | Answer: (B) excretory and nervous | Question: Which two body systems are involved in inhaling oxygen and exhaling carbon dioxide?
(A) endocrine and skeletal
(B) excretory and nervous
(C) circulatory and respiratory
(D) digestive and reproductive
Answer: (C) circulatory and respiratory |
Mercury_7165323 | Materials such as carbon and nitrogen go through cycles. The cycling of nitrogen waste materials is mostly dependent upon the role of which factor? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"atmosphere",
"bacteria",
"sunlight",
"trees"
]
} | B | Question: Materials such as carbon and nitrogen go through cycles. The cycling of nitrogen waste materials is mostly dependent upon the role of which factor?
(A) atmosphere
(B) bacteria
(C) sunlight
(D) trees
| Answer: (B) bacteria | Answer: (A) atmosphere | Question: Materials such as carbon and nitrogen go through cycles. The cycling of nitrogen waste materials is mostly dependent upon the role of which factor?
(A) atmosphere
(B) bacteria
(C) sunlight
(D) trees
Answer: (B) bacteria |
Mercury_7206413 | Which of these is unique to the process of scientific investigation? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"observing an event as it occurs",
"discussing results with other experts",
"publishing the results on a webpage",
"collecting data in an experiment"
]
} | D | Question: Which of these is unique to the process of scientific investigation?
(A) observing an event as it occurs
(B) discussing results with other experts
(C) publishing the results on a webpage
(D) collecting data in an experiment
| Answer: (D) collecting data in an experiment | Answer: (A) observing an event as it occurs | Question: Which of these is unique to the process of scientific investigation?
(A) observing an event as it occurs
(B) discussing results with other experts
(C) publishing the results on a webpage
(D) collecting data in an experiment
Answer: (D) collecting data in an experiment |
Mercury_LBS10054 | Which did Thomas Edison invent? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"microscope",
"compass",
"light bulb",
"steam engine"
]
} | C | Question: Which did Thomas Edison invent?
(A) microscope
(B) compass
(C) light bulb
(D) steam engine
| Answer: (C) light bulb | Answer: (D) steam engine | Question: Which did Thomas Edison invent?
(A) microscope
(B) compass
(C) light bulb
(D) steam engine
Answer: (C) light bulb |
Mercury_LBS10522 | If soil is permeable | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"water cannot flow through it.",
"water easily flows through it.",
"it contains many minerals.",
"it contains few minerals."
]
} | B | Question: If soil is permeable
(A) water cannot flow through it.
(B) water easily flows through it.
(C) it contains many minerals.
(D) it contains few minerals.
| Answer: (B) water easily flows through it. | Answer: (A) water cannot flow through it. | Question: If soil is permeable
(A) water cannot flow through it.
(B) water easily flows through it.
(C) it contains many minerals.
(D) it contains few minerals.
Answer: (B) water easily flows through it. |
Mercury_SC_405147 | Sally is making candy on the stove. She places a thermometer in the candy. What is she measuring? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"length",
"speed",
"temperature",
"weight"
]
} | C | Question: Sally is making candy on the stove. She places a thermometer in the candy. What is she measuring?
(A) length
(B) speed
(C) temperature
(D) weight
| Answer: (C) temperature | Answer: (B) speed | Question: Sally is making candy on the stove. She places a thermometer in the candy. What is she measuring?
(A) length
(B) speed
(C) temperature
(D) weight
Answer: (C) temperature |
Mercury_SC_408027 | Anthony and Zach want to know how the temperature of the air affects the temperature of lake water. Which type of tool should they use to measure the temperatures? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"balance",
"ruler",
"scale",
"thermometer"
]
} | D | Question: Anthony and Zach want to know how the temperature of the air affects the temperature of lake water. Which type of tool should they use to measure the temperatures?
(A) balance
(B) ruler
(C) scale
(D) thermometer
| Answer: (D) thermometer | Answer: (C) scale | Question: Anthony and Zach want to know how the temperature of the air affects the temperature of lake water. Which type of tool should they use to measure the temperatures?
(A) balance
(B) ruler
(C) scale
(D) thermometer
Answer: (D) thermometer |
ACTAAP_2013_5_2 | Which serve as evidence for a scientific theory? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"guesses",
"opinions",
"arguments",
"observations"
]
} | D | Question: Which serve as evidence for a scientific theory?
(A) guesses
(B) opinions
(C) arguments
(D) observations
| Answer: (D) observations | Answer: (B) opinions | Question: Which serve as evidence for a scientific theory?
(A) guesses
(B) opinions
(C) arguments
(D) observations
Answer: (D) observations |
MCAS_2007_8_5170 | Which of the following identifies the primary function of a radio station tower in a communication system? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"decoder",
"encoder",
"receiver",
"transmitter"
]
} | D | Question: Which of the following identifies the primary function of a radio station tower in a communication system?
(A) decoder
(B) encoder
(C) receiver
(D) transmitter
| Answer: (D) transmitter | Answer: (C) receiver | Question: Which of the following identifies the primary function of a radio station tower in a communication system?
(A) decoder
(B) encoder
(C) receiver
(D) transmitter
Answer: (D) transmitter |
Mercury_SC_400660 | Down feathers are used by many sleeping bag manufacturers because down feathers are | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"fire resistant.",
"comfortable padding.",
"good insulators.",
"water resistant."
]
} | C | Question: Down feathers are used by many sleeping bag manufacturers because down feathers are
(A) fire resistant.
(B) comfortable padding.
(C) good insulators.
(D) water resistant.
| Answer: (C) good insulators. | Answer: (B) comfortable padding. | Question: Down feathers are used by many sleeping bag manufacturers because down feathers are
(A) fire resistant.
(B) comfortable padding.
(C) good insulators.
(D) water resistant.
Answer: (C) good insulators. |
Mercury_7195318 | A farmer sprayed his orange trees with a pesticide to eliminate the insects damaging the trees. Some of the insects survived and produced offspring that were also resistant to the insecticide. Which process is illustrated by the pesticide resistance of the offspring? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"natural selection",
"selective breeding",
"aerobic respiration",
"sexual reproduction"
]
} | A | Question: A farmer sprayed his orange trees with a pesticide to eliminate the insects damaging the trees. Some of the insects survived and produced offspring that were also resistant to the insecticide. Which process is illustrated by the pesticide resistance of the offspring?
(A) natural selection
(B) selective breeding
(C) aerobic respiration
(D) sexual reproduction
| Answer: (A) natural selection | Answer: (B) selective breeding | Question: A farmer sprayed his orange trees with a pesticide to eliminate the insects damaging the trees. Some of the insects survived and produced offspring that were also resistant to the insecticide. Which process is illustrated by the pesticide resistance of the offspring?
(A) natural selection
(B) selective breeding
(C) aerobic respiration
(D) sexual reproduction
Answer: (A) natural selection |
Mercury_7167020 | An elephant is a multicellular organism that weighs about 200 pounds at birth and can grow to weigh as much as 15,000 pounds. What increases as the elephant grows into an adult? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the size of each body cell",
"the number of cells in its body",
"the amount of energy in its cells",
"the collection of water in each cell"
]
} | B | Question: An elephant is a multicellular organism that weighs about 200 pounds at birth and can grow to weigh as much as 15,000 pounds. What increases as the elephant grows into an adult?
(A) the size of each body cell
(B) the number of cells in its body
(C) the amount of energy in its cells
(D) the collection of water in each cell
| Answer: (B) the number of cells in its body | Answer: (A) the size of each body cell | Question: An elephant is a multicellular organism that weighs about 200 pounds at birth and can grow to weigh as much as 15,000 pounds. What increases as the elephant grows into an adult?
(A) the size of each body cell
(B) the number of cells in its body
(C) the amount of energy in its cells
(D) the collection of water in each cell
Answer: (B) the number of cells in its body |
Mercury_7132423 | The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"digestive and circulatory",
"digestive and endocrine",
"nervous and respiratory",
"nervous and excretory"
]
} | A | Question: The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells?
(A) digestive and circulatory
(B) digestive and endocrine
(C) nervous and respiratory
(D) nervous and excretory
| Answer: (A) digestive and circulatory | Answer: (B) digestive and endocrine | Question: The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells?
(A) digestive and circulatory
(B) digestive and endocrine
(C) nervous and respiratory
(D) nervous and excretory
Answer: (A) digestive and circulatory |
MSA_2012_8_35 | The human body is composed of different systems made of specialized cells, tissues, and organs. Each of these structures has a specific function that aids in the survival of the human species. Which organs are used in reproduction? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"brain, spinal cord, and eyes",
"lungs, esophagus, and heart",
"mouth, stomach, and gallbladder",
"ovaries, uterus, and fallopian tubes"
]
} | D | Question: The human body is composed of different systems made of specialized cells, tissues, and organs. Each of these structures has a specific function that aids in the survival of the human species. Which organs are used in reproduction?
(A) brain, spinal cord, and eyes
(B) lungs, esophagus, and heart
(C) mouth, stomach, and gallbladder
(D) ovaries, uterus, and fallopian tubes
| Answer: (D) ovaries, uterus, and fallopian tubes | Answer: (B) lungs, esophagus, and heart | Question: The human body is composed of different systems made of specialized cells, tissues, and organs. Each of these structures has a specific function that aids in the survival of the human species. Which organs are used in reproduction?
(A) brain, spinal cord, and eyes
(B) lungs, esophagus, and heart
(C) mouth, stomach, and gallbladder
(D) ovaries, uterus, and fallopian tubes
Answer: (D) ovaries, uterus, and fallopian tubes |
Mercury_7058100 | Which type of organism is at the lowest level of the food chain? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"autotroph",
"heterotroph",
"carnivore",
"omnivore"
]
} | A | Question: Which type of organism is at the lowest level of the food chain?
(A) autotroph
(B) heterotroph
(C) carnivore
(D) omnivore
| Answer: (A) autotroph | Answer: (B) heterotroph | Question: Which type of organism is at the lowest level of the food chain?
(A) autotroph
(B) heterotroph
(C) carnivore
(D) omnivore
Answer: (A) autotroph |
VASoL_2010_3_7 | Jake's cats eat food from a can. The cats come running into the kitchen when they hear the electric can opener. Now, each time Jake's mother opens a can of corn, the cats come running. This is an example of | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"learned behavior",
"correct behavior",
"instinct",
"migration"
]
} | A | Question: Jake's cats eat food from a can. The cats come running into the kitchen when they hear the electric can opener. Now, each time Jake's mother opens a can of corn, the cats come running. This is an example of
(A) learned behavior
(B) correct behavior
(C) instinct
(D) migration
| Answer: (A) learned behavior | Answer: (B) correct behavior | Question: Jake's cats eat food from a can. The cats come running into the kitchen when they hear the electric can opener. Now, each time Jake's mother opens a can of corn, the cats come running. This is an example of
(A) learned behavior
(B) correct behavior
(C) instinct
(D) migration
Answer: (A) learned behavior |
Mercury_7027073 | A team of surveyors takes measurements of ground altitude at horizontal intervals of 1 meter over a 400 square meter area. These measurements can best be used to produce which representation of the area? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a topographical map",
"a map of wind currents",
"a plate tectonic diagram",
"a chart of sedimentary layers"
]
} | A | Question: A team of surveyors takes measurements of ground altitude at horizontal intervals of 1 meter over a 400 square meter area. These measurements can best be used to produce which representation of the area?
(A) a topographical map
(B) a map of wind currents
(C) a plate tectonic diagram
(D) a chart of sedimentary layers
| Answer: (A) a topographical map | Answer: (D) a chart of sedimentary layers | Question: A team of surveyors takes measurements of ground altitude at horizontal intervals of 1 meter over a 400 square meter area. These measurements can best be used to produce which representation of the area?
(A) a topographical map
(B) a map of wind currents
(C) a plate tectonic diagram
(D) a chart of sedimentary layers
Answer: (A) a topographical map |
MDSA_2009_5_21 | Some schools have programs to recycle paper products such as student papers, newspapers, and cardboard boxes. Which of these statements describes a positive effect of recycling paper products? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Schools need to buy less paper.",
"Fewer trees need to be cut.",
"Landfills have less room for other trash.",
"Recycling consumes more energy than making new paper."
]
} | B | Question: Some schools have programs to recycle paper products such as student papers, newspapers, and cardboard boxes. Which of these statements describes a positive effect of recycling paper products?
(A) Schools need to buy less paper.
(B) Fewer trees need to be cut.
(C) Landfills have less room for other trash.
(D) Recycling consumes more energy than making new paper.
| Answer: (B) Fewer trees need to be cut. | Answer: (A) Schools need to buy less paper. | Question: Some schools have programs to recycle paper products such as student papers, newspapers, and cardboard boxes. Which of these statements describes a positive effect of recycling paper products?
(A) Schools need to buy less paper.
(B) Fewer trees need to be cut.
(C) Landfills have less room for other trash.
(D) Recycling consumes more energy than making new paper.
Answer: (B) Fewer trees need to be cut. |
Mercury_7211943 | Light sometimes behaves as waves and other times as particles. Which property of light is equally explainable by treating light as either particles or waves? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"interference of light",
"reflection of light",
"diffraction of light",
"polarization of light"
]
} | B | Question: Light sometimes behaves as waves and other times as particles. Which property of light is equally explainable by treating light as either particles or waves?
(A) interference of light
(B) reflection of light
(C) diffraction of light
(D) polarization of light
| Answer: (B) reflection of light | Answer: (C) diffraction of light | Question: Light sometimes behaves as waves and other times as particles. Which property of light is equally explainable by treating light as either particles or waves?
(A) interference of light
(B) reflection of light
(C) diffraction of light
(D) polarization of light
Answer: (B) reflection of light |
Mercury_7071785 | The topography of Nevada is dominated by basins and mountain ranges associated with which geological phenomena? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"faults",
"trenches",
"hot spots",
"hydrothermal vents"
]
} | A | Question: The topography of Nevada is dominated by basins and mountain ranges associated with which geological phenomena?
(A) faults
(B) trenches
(C) hot spots
(D) hydrothermal vents
| Answer: (A) faults | Answer: (C) hot spots | Question: The topography of Nevada is dominated by basins and mountain ranges associated with which geological phenomena?
(A) faults
(B) trenches
(C) hot spots
(D) hydrothermal vents
Answer: (A) faults |
Mercury_7007805 | Which biological activity occurs in a repeated rhythm? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"sneezing",
"coughing",
"breathing",
"blinking"
]
} | C | Question: Which biological activity occurs in a repeated rhythm?
(A) sneezing
(B) coughing
(C) breathing
(D) blinking
| Answer: (C) breathing | Answer: (B) coughing | Question: Which biological activity occurs in a repeated rhythm?
(A) sneezing
(B) coughing
(C) breathing
(D) blinking
Answer: (C) breathing |
Mercury_7269080 | Which model best illustrates the wave property that enables scientists to explore Earth's interior using seismic waves? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"shining a light on rock in a bowl",
"shining a light through a prism",
"shining a light through a periscope",
"shining a light on a sundial"
]
} | B | Question: Which model best illustrates the wave property that enables scientists to explore Earth's interior using seismic waves?
(A) shining a light on rock in a bowl
(B) shining a light through a prism
(C) shining a light through a periscope
(D) shining a light on a sundial
| Answer: (B) shining a light through a prism | Answer: (C) shining a light through a periscope | Question: Which model best illustrates the wave property that enables scientists to explore Earth's interior using seismic waves?
(A) shining a light on rock in a bowl
(B) shining a light through a prism
(C) shining a light through a periscope
(D) shining a light on a sundial
Answer: (B) shining a light through a prism |
MDSA_2007_5_14 | In 1933, a hurricane came ashore at Ocean City, Maryland. A hurricane negatively affects a coastline by | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"causing erosion",
"causing earthquakes",
"increasing food production",
"increasing the growth of grasses"
]
} | A | Question: In 1933, a hurricane came ashore at Ocean City, Maryland. A hurricane negatively affects a coastline by
(A) causing erosion
(B) causing earthquakes
(C) increasing food production
(D) increasing the growth of grasses
| Answer: (A) causing erosion | Answer: (B) causing earthquakes | Question: In 1933, a hurricane came ashore at Ocean City, Maryland. A hurricane negatively affects a coastline by
(A) causing erosion
(B) causing earthquakes
(C) increasing food production
(D) increasing the growth of grasses
Answer: (A) causing erosion |
MEA_2010_8_4-v1 | Which statement describes the location of our Sun in the universe? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Our Sun orbits Earth in the Andromeda galaxy.",
"Our Sun orbits Earth in the Milky Way galaxy.",
"Our Sun is the center of a solar system in the Milky Way galaxy.",
"Our Sun is the center of a solar system in the Andromeda galaxy."
]
} | C | Question: Which statement describes the location of our Sun in the universe?
(A) Our Sun orbits Earth in the Andromeda galaxy.
(B) Our Sun orbits Earth in the Milky Way galaxy.
(C) Our Sun is the center of a solar system in the Milky Way galaxy.
(D) Our Sun is the center of a solar system in the Andromeda galaxy.
| Answer: (C) Our Sun is the center of a solar system in the Milky Way galaxy. | Answer: (D) Our Sun is the center of a solar system in the Andromeda galaxy. | Question: Which statement describes the location of our Sun in the universe?
(A) Our Sun orbits Earth in the Andromeda galaxy.
(B) Our Sun orbits Earth in the Milky Way galaxy.
(C) Our Sun is the center of a solar system in the Milky Way galaxy.
(D) Our Sun is the center of a solar system in the Andromeda galaxy.
Answer: (C) Our Sun is the center of a solar system in the Milky Way galaxy. |
AIMS_2009_4_17 | Scientists claim that the area around the Grand Canyon was once covered by an ocean. What evidence would support their claim? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Dinosaur footprints were found near the Grand Canyon.",
"Fish were found living in the rivers of the Grand Canyon.",
"Fossils of ocean animals were found at the Grand Canyon.",
"Bones from desert animals were found at the Grand Canyon."
]
} | C | Question: Scientists claim that the area around the Grand Canyon was once covered by an ocean. What evidence would support their claim?
(A) Dinosaur footprints were found near the Grand Canyon.
(B) Fish were found living in the rivers of the Grand Canyon.
(C) Fossils of ocean animals were found at the Grand Canyon.
(D) Bones from desert animals were found at the Grand Canyon.
| Answer: (C) Fossils of ocean animals were found at the Grand Canyon. | Answer: (D) Bones from desert animals were found at the Grand Canyon. | Question: Scientists claim that the area around the Grand Canyon was once covered by an ocean. What evidence would support their claim?
(A) Dinosaur footprints were found near the Grand Canyon.
(B) Fish were found living in the rivers of the Grand Canyon.
(C) Fossils of ocean animals were found at the Grand Canyon.
(D) Bones from desert animals were found at the Grand Canyon.
Answer: (C) Fossils of ocean animals were found at the Grand Canyon. |
ACTAAP_2007_7_32 | Which is true of scientific discoveries? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"All scientific discoveries are based solely on observation and never experimentation.",
"Sometimes scientific discoveries are made by accident, like the discovery of penicillin.",
"If a scientist cannot provide the exact time and place his or her discovery was made, it is dismissed.",
"All scientific discoveries are regulated by government agencies, like the Food and Drug Administration."
]
} | B | Question: Which is true of scientific discoveries?
(A) All scientific discoveries are based solely on observation and never experimentation.
(B) Sometimes scientific discoveries are made by accident, like the discovery of penicillin.
(C) If a scientist cannot provide the exact time and place his or her discovery was made, it is dismissed.
(D) All scientific discoveries are regulated by government agencies, like the Food and Drug Administration.
| Answer: (B) Sometimes scientific discoveries are made by accident, like the discovery of penicillin. | Answer: (C) If a scientist cannot provide the exact time and place his or her discovery was made, it is dismissed. | Question: Which is true of scientific discoveries?
(A) All scientific discoveries are based solely on observation and never experimentation.
(B) Sometimes scientific discoveries are made by accident, like the discovery of penicillin.
(C) If a scientist cannot provide the exact time and place his or her discovery was made, it is dismissed.
(D) All scientific discoveries are regulated by government agencies, like the Food and Drug Administration.
Answer: (B) Sometimes scientific discoveries are made by accident, like the discovery of penicillin. |
Mercury_SC_401768 | Which is a process that most likely formed the Appalachian Mountains found in the eastern part of North America? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"earthquake",
"folded rock",
"plate tectonics",
"volcanic activity"
]
} | C | Question: Which is a process that most likely formed the Appalachian Mountains found in the eastern part of North America?
(A) earthquake
(B) folded rock
(C) plate tectonics
(D) volcanic activity
| Answer: (C) plate tectonics | Answer: (A) earthquake | Question: Which is a process that most likely formed the Appalachian Mountains found in the eastern part of North America?
(A) earthquake
(B) folded rock
(C) plate tectonics
(D) volcanic activity
Answer: (C) plate tectonics |
Mercury_7093135 | Which technology used to generate electrical power involves a trade-off between economical electricity and long-term waste disposal problems? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"fossil fuel",
"nuclear reactor",
"solar collector",
"wind turbine"
]
} | B | Question: Which technology used to generate electrical power involves a trade-off between economical electricity and long-term waste disposal problems?
(A) fossil fuel
(B) nuclear reactor
(C) solar collector
(D) wind turbine
| Answer: (B) nuclear reactor | Answer: (A) fossil fuel | Question: Which technology used to generate electrical power involves a trade-off between economical electricity and long-term waste disposal problems?
(A) fossil fuel
(B) nuclear reactor
(C) solar collector
(D) wind turbine
Answer: (B) nuclear reactor |
MCAS_2010_5_9 | All the ponds in an area dried up during a drought. The population of which of the following animals that live in the area is most affected by the drought? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"deer",
"frog",
"hawk",
"squirrel"
]
} | B | Question: All the ponds in an area dried up during a drought. The population of which of the following animals that live in the area is most affected by the drought?
(A) deer
(B) frog
(C) hawk
(D) squirrel
| Answer: (B) frog | Answer: (D) squirrel | Question: All the ponds in an area dried up during a drought. The population of which of the following animals that live in the area is most affected by the drought?
(A) deer
(B) frog
(C) hawk
(D) squirrel
Answer: (B) frog |
NYSEDREGENTS_2005_4_16 | Which substance is usually found in nature as a liquid, solid, and gas? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"water",
"rock",
"metal",
"glass"
]
} | A | Question: Which substance is usually found in nature as a liquid, solid, and gas?
(A) water
(B) rock
(C) metal
(D) glass
| Answer: (A) water | Answer: (D) glass | Question: Which substance is usually found in nature as a liquid, solid, and gas?
(A) water
(B) rock
(C) metal
(D) glass
Answer: (A) water |
Mercury_417474 | The scientific name for a giraffe is Giraffa camelopardalis. What two levels of classification does this name represent? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"family and order",
"kingdom and genus",
"phylum and domain",
"genus and species"
]
} | D | Question: The scientific name for a giraffe is Giraffa camelopardalis. What two levels of classification does this name represent?
(A) family and order
(B) kingdom and genus
(C) phylum and domain
(D) genus and species
| Answer: (D) genus and species | Answer: (B) kingdom and genus | Question: The scientific name for a giraffe is Giraffa camelopardalis. What two levels of classification does this name represent?
(A) family and order
(B) kingdom and genus
(C) phylum and domain
(D) genus and species
Answer: (D) genus and species |
NYSEDREGENTS_2007_8_39 | The Moon has the greatest effect on Earth's | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"year",
"seasons",
"ocean tides",
"daylight hours"
]
} | 3 | Question: The Moon has the greatest effect on Earth's
(1) year
(2) seasons
(3) ocean tides
(4) daylight hours
| Answer: (3) ocean tides | Answer: (2) seasons | Question: The Moon has the greatest effect on Earth's
(1) year
(2) seasons
(3) ocean tides
(4) daylight hours
Answer: (3) ocean tides |
Mercury_405160 | Granite is classified as a rock because it | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"is made of minerals.",
"is hard and rounded.",
"has crystals.",
"has mass."
]
} | A | Question: Granite is classified as a rock because it
(A) is made of minerals.
(B) is hard and rounded.
(C) has crystals.
(D) has mass.
| Answer: (A) is made of minerals. | Answer: (D) has mass. | Question: Granite is classified as a rock because it
(A) is made of minerals.
(B) is hard and rounded.
(C) has crystals.
(D) has mass.
Answer: (A) is made of minerals. |
Mercury_7011375 | The measure of the amount of light received on Earth from a star is known as | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"parallax.",
"redshift.",
"absolute magnitude.",
"apparent magnitude."
]
} | D | Question: The measure of the amount of light received on Earth from a star is known as
(A) parallax.
(B) redshift.
(C) absolute magnitude.
(D) apparent magnitude.
| Answer: (D) apparent magnitude. | Answer: (C) absolute magnitude. | Question: The measure of the amount of light received on Earth from a star is known as
(A) parallax.
(B) redshift.
(C) absolute magnitude.
(D) apparent magnitude.
Answer: (D) apparent magnitude. |
MCAS_2007_8_5162 | Heat from deep in Earth's interior is transferred to its crust by which of the following? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"conduction in the ocean",
"convection in the mantle",
"radiation from the solid core",
"evaporation at mid-ocean ridges"
]
} | B | Question: Heat from deep in Earth's interior is transferred to its crust by which of the following?
(A) conduction in the ocean
(B) convection in the mantle
(C) radiation from the solid core
(D) evaporation at mid-ocean ridges
| Answer: (B) convection in the mantle | Answer: (A) conduction in the ocean | Question: Heat from deep in Earth's interior is transferred to its crust by which of the following?
(A) conduction in the ocean
(B) convection in the mantle
(C) radiation from the solid core
(D) evaporation at mid-ocean ridges
Answer: (B) convection in the mantle |
TAKS_2009_8_26 | The growth of which of the following usually occurs first in primary succession on a bare rock? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Lichens",
"Grasses",
"Trees",
"Shrubs"
]
} | A | Question: The growth of which of the following usually occurs first in primary succession on a bare rock?
(A) Lichens
(B) Grasses
(C) Trees
(D) Shrubs
| Answer: (A) Lichens | Answer: (C) Trees | Question: The growth of which of the following usually occurs first in primary succession on a bare rock?
(A) Lichens
(B) Grasses
(C) Trees
(D) Shrubs
Answer: (A) Lichens |
Mercury_7011428 | The process by which water vapor in the atmosphere cools and becomes a liquid is called | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"evaporation.",
"perspiration.",
"condensation.",
"transportation."
]
} | C | Question: The process by which water vapor in the atmosphere cools and becomes a liquid is called
(A) evaporation.
(B) perspiration.
(C) condensation.
(D) transportation.
| Answer: (C) condensation. | Answer: (A) evaporation. | Question: The process by which water vapor in the atmosphere cools and becomes a liquid is called
(A) evaporation.
(B) perspiration.
(C) condensation.
(D) transportation.
Answer: (C) condensation. |
Mercury_SC_400023 | A student is dropping objects of various sizes and shapes and recording the time it takes for each object to hit the ground. Which question is the student most likely trying to answer? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"What force slows some objects down?",
"What force pulls objects to the ground?",
"Do some objects fall more quickly than others?",
"Do objects break or bounce when hitting the ground?"
]
} | C | Question: A student is dropping objects of various sizes and shapes and recording the time it takes for each object to hit the ground. Which question is the student most likely trying to answer?
(A) What force slows some objects down?
(B) What force pulls objects to the ground?
(C) Do some objects fall more quickly than others?
(D) Do objects break or bounce when hitting the ground?
| Answer: (C) Do some objects fall more quickly than others? | Answer: (A) What force slows some objects down? | Question: A student is dropping objects of various sizes and shapes and recording the time it takes for each object to hit the ground. Which question is the student most likely trying to answer?
(A) What force slows some objects down?
(B) What force pulls objects to the ground?
(C) Do some objects fall more quickly than others?
(D) Do objects break or bounce when hitting the ground?
Answer: (C) Do some objects fall more quickly than others? |
AKDE&ED_2012_8_41 | Which two processes in the water cycle are primarily responsible for the creation of a lake? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"evaporation and runoff",
"evaporation and condensation",
"precipitation and runoff",
"precipitation and condensation"
]
} | C | Question: Which two processes in the water cycle are primarily responsible for the creation of a lake?
(A) evaporation and runoff
(B) evaporation and condensation
(C) precipitation and runoff
(D) precipitation and condensation
| Answer: (C) precipitation and runoff | Answer: (A) evaporation and runoff | Question: Which two processes in the water cycle are primarily responsible for the creation of a lake?
(A) evaporation and runoff
(B) evaporation and condensation
(C) precipitation and runoff
(D) precipitation and condensation
Answer: (C) precipitation and runoff |
Mercury_7010220 | The correct procedure after completing a laboratory experiment is to | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"put all non-reusable glass in the trash.",
"pour all used chemicals down the sink.",
"collect and store recyclable material.",
"return used samples to natural settings."
]
} | C | Question: The correct procedure after completing a laboratory experiment is to
(A) put all non-reusable glass in the trash.
(B) pour all used chemicals down the sink.
(C) collect and store recyclable material.
(D) return used samples to natural settings.
| Answer: (C) collect and store recyclable material. | Answer: (D) return used samples to natural settings. | Question: The correct procedure after completing a laboratory experiment is to
(A) put all non-reusable glass in the trash.
(B) pour all used chemicals down the sink.
(C) collect and store recyclable material.
(D) return used samples to natural settings.
Answer: (C) collect and store recyclable material. |
Mercury_7245770 | Which is an example of primary ecological succession? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"plants and animals invading an abandoned crop field",
"mangroves stabilizing the soils on tropical coasts",
"minerals spurring rapid plant growth",
"lichen growth on rocks"
]
} | D | Question: Which is an example of primary ecological succession?
(A) plants and animals invading an abandoned crop field
(B) mangroves stabilizing the soils on tropical coasts
(C) minerals spurring rapid plant growth
(D) lichen growth on rocks
| Answer: (D) lichen growth on rocks | Answer: (C) minerals spurring rapid plant growth | Question: Which is an example of primary ecological succession?
(A) plants and animals invading an abandoned crop field
(B) mangroves stabilizing the soils on tropical coasts
(C) minerals spurring rapid plant growth
(D) lichen growth on rocks
Answer: (D) lichen growth on rocks |
Mercury_7284078 | What is true of mutualistic relationships among organisms? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"The organisms ignore each other.",
"The organisms cooperate with each other.",
"The organisms prey on each other.",
"The organisms compete with each other."
]
} | B | Question: What is true of mutualistic relationships among organisms?
(A) The organisms ignore each other.
(B) The organisms cooperate with each other.
(C) The organisms prey on each other.
(D) The organisms compete with each other.
| Answer: (B) The organisms cooperate with each other. | Answer: (D) The organisms compete with each other. | Question: What is true of mutualistic relationships among organisms?
(A) The organisms ignore each other.
(B) The organisms cooperate with each other.
(C) The organisms prey on each other.
(D) The organisms compete with each other.
Answer: (B) The organisms cooperate with each other. |
Mercury_SC_405793 | Carolina uses a microscope to view a soil sample taken from her backyard. Which part of the soil would she ONLY be able to see with a microscope? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"bacteria",
"grass",
"rainwater",
"rocks"
]
} | A | Question: Carolina uses a microscope to view a soil sample taken from her backyard. Which part of the soil would she ONLY be able to see with a microscope?
(A) bacteria
(B) grass
(C) rainwater
(D) rocks
| Answer: (A) bacteria | Answer: (B) grass | Question: Carolina uses a microscope to view a soil sample taken from her backyard. Which part of the soil would she ONLY be able to see with a microscope?
(A) bacteria
(B) grass
(C) rainwater
(D) rocks
Answer: (A) bacteria |
Mercury_7014280 | The part of the rock cycle that transforms compressed rock formed from sea organism shells into a harder, denser rock is | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"igneous rock becoming sedimentary rock.",
"igneous rock becoming metamorphic rock.",
"metamorphic rock becoming igneous rock.",
"sedimentary rock becoming metamorphic rock."
]
} | D | Question: The part of the rock cycle that transforms compressed rock formed from sea organism shells into a harder, denser rock is
(A) igneous rock becoming sedimentary rock.
(B) igneous rock becoming metamorphic rock.
(C) metamorphic rock becoming igneous rock.
(D) sedimentary rock becoming metamorphic rock.
| Answer: (D) sedimentary rock becoming metamorphic rock. | Answer: (B) igneous rock becoming metamorphic rock. | Question: The part of the rock cycle that transforms compressed rock formed from sea organism shells into a harder, denser rock is
(A) igneous rock becoming sedimentary rock.
(B) igneous rock becoming metamorphic rock.
(C) metamorphic rock becoming igneous rock.
(D) sedimentary rock becoming metamorphic rock.
Answer: (D) sedimentary rock becoming metamorphic rock. |
Mercury_416384 | A group of scientists predicts that Earth's oceans will be able to take up more carbon dioxide as atmospheric carbon dioxide levels increase and the atmosphere warms. Which of these statements about the solubility of gases in ocean water would lead you to question this prediction? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Solubility decreases with an increase in salinity.",
"Solubility decreases with an increase in temperature.",
"Solubility increases with an increase in pressure.",
"Solubility increases with an increase in pH."
]
} | B | Question: A group of scientists predicts that Earth's oceans will be able to take up more carbon dioxide as atmospheric carbon dioxide levels increase and the atmosphere warms. Which of these statements about the solubility of gases in ocean water would lead you to question this prediction?
(A) Solubility decreases with an increase in salinity.
(B) Solubility decreases with an increase in temperature.
(C) Solubility increases with an increase in pressure.
(D) Solubility increases with an increase in pH.
| Answer: (B) Solubility decreases with an increase in temperature. | Answer: (A) Solubility decreases with an increase in salinity. | Question: A group of scientists predicts that Earth's oceans will be able to take up more carbon dioxide as atmospheric carbon dioxide levels increase and the atmosphere warms. Which of these statements about the solubility of gases in ocean water would lead you to question this prediction?
(A) Solubility decreases with an increase in salinity.
(B) Solubility decreases with an increase in temperature.
(C) Solubility increases with an increase in pressure.
(D) Solubility increases with an increase in pH.
Answer: (B) Solubility decreases with an increase in temperature. |
CSZ_2009_8_CSZ30768 | Which of the following elements is best able to combine with itself and hydrogen [H] to form large molecules? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"sodium [Na]",
"lithium [Li]",
"sulfur [S]",
"carbon [C]"
]
} | D | Question: Which of the following elements is best able to combine with itself and hydrogen [H] to form large molecules?
(A) sodium [Na]
(B) lithium [Li]
(C) sulfur [S]
(D) carbon [C]
| Answer: (D) carbon [C] | Answer: (C) sulfur [S] | Question: Which of the following elements is best able to combine with itself and hydrogen [H] to form large molecules?
(A) sodium [Na]
(B) lithium [Li]
(C) sulfur [S]
(D) carbon [C]
Answer: (D) carbon [C] |
NYSEDREGENTS_2007_4_16 | Growing thicker fur in the winter helps some animals to | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"hide from danger",
"attract a mate",
"find food",
"keep warm"
]
} | D | Question: Growing thicker fur in the winter helps some animals to
(A) hide from danger
(B) attract a mate
(C) find food
(D) keep warm
| Answer: (D) keep warm | Answer: (A) hide from danger | Question: Growing thicker fur in the winter helps some animals to
(A) hide from danger
(B) attract a mate
(C) find food
(D) keep warm
Answer: (D) keep warm |
Mercury_7042683 | Several types of mechanisms in the body regulate the rate of chemical reactions in the digestive system. Among the most important are feedback systems, which control the release rate of | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"lipids.",
"enzymes.",
"nucleic acids.",
"carbohydrates."
]
} | B | Question: Several types of mechanisms in the body regulate the rate of chemical reactions in the digestive system. Among the most important are feedback systems, which control the release rate of
(A) lipids.
(B) enzymes.
(C) nucleic acids.
(D) carbohydrates.
| Answer: (B) enzymes. | Answer: (D) carbohydrates. | Question: Several types of mechanisms in the body regulate the rate of chemical reactions in the digestive system. Among the most important are feedback systems, which control the release rate of
(A) lipids.
(B) enzymes.
(C) nucleic acids.
(D) carbohydrates.
Answer: (B) enzymes. |
Mercury_SC_413301 | The water in a pond gets colder one night. Which tool is best to observe its temperature change? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"balance",
"magnifying glass",
"ruler",
"thermometer"
]
} | D | Question: The water in a pond gets colder one night. Which tool is best to observe its temperature change?
(A) balance
(B) magnifying glass
(C) ruler
(D) thermometer
| Answer: (D) thermometer | Answer: (C) ruler | Question: The water in a pond gets colder one night. Which tool is best to observe its temperature change?
(A) balance
(B) magnifying glass
(C) ruler
(D) thermometer
Answer: (D) thermometer |
Mercury_7091998 | During subduction, one tectonic plate is forced below another. The subducting plate is forced into the | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"asthenosphere.",
"lithosphere.",
"outer core.",
"inner core."
]
} | A | Question: During subduction, one tectonic plate is forced below another. The subducting plate is forced into the
(A) asthenosphere.
(B) lithosphere.
(C) outer core.
(D) inner core.
| Answer: (A) asthenosphere. | Answer: (B) lithosphere. | Question: During subduction, one tectonic plate is forced below another. The subducting plate is forced into the
(A) asthenosphere.
(B) lithosphere.
(C) outer core.
(D) inner core.
Answer: (A) asthenosphere. |
NAEP_2005_8_S11+9 | What two gases make up most of the Earth's atmosphere? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Hydrogen and oxygen",
"Hydrogen and nitrogen",
"Oxygen and carbon dioxide",
"Oxygen and nitrogen"
]
} | D | Question: What two gases make up most of the Earth's atmosphere?
(A) Hydrogen and oxygen
(B) Hydrogen and nitrogen
(C) Oxygen and carbon dioxide
(D) Oxygen and nitrogen
| Answer: (D) Oxygen and nitrogen | Answer: (B) Hydrogen and nitrogen | Question: What two gases make up most of the Earth's atmosphere?
(A) Hydrogen and oxygen
(B) Hydrogen and nitrogen
(C) Oxygen and carbon dioxide
(D) Oxygen and nitrogen
Answer: (D) Oxygen and nitrogen |
Mercury_7015785 | A light-year is a measure of | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"time.",
"energy.",
"distance.",
"direction."
]
} | C | Question: A light-year is a measure of
(A) time.
(B) energy.
(C) distance.
(D) direction.
| Answer: (C) distance. | Answer: (D) direction. | Question: A light-year is a measure of
(A) time.
(B) energy.
(C) distance.
(D) direction.
Answer: (C) distance. |
NYSEDREGENTS_2016_4_10 | Some birds live in a forest. If many of the trees in the forest are cut down, the shelter for the birds will | {
"label": [
"A",
"B",
"C"
],
"text": [
"decrease",
"increase",
"remain the same"
]
} | A | Question: Some birds live in a forest. If many of the trees in the forest are cut down, the shelter for the birds will
(A) decrease
(B) increase
(C) remain the same
| Answer: (A) decrease | Answer: (C) remain the same | Question: Some birds live in a forest. If many of the trees in the forest are cut down, the shelter for the birds will
(A) decrease
(B) increase
(C) remain the same
Answer: (A) decrease |
Mercury_7188125 | In the human body, cellular respiration breaks down sugar molecules after they enter the cell. What results from this process? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"growth of bacteria",
"release of energy",
"activity of enzymes",
"production of oxygen"
]
} | B | Question: In the human body, cellular respiration breaks down sugar molecules after they enter the cell. What results from this process?
(A) growth of bacteria
(B) release of energy
(C) activity of enzymes
(D) production of oxygen
| Answer: (B) release of energy | Answer: (D) production of oxygen | Question: In the human body, cellular respiration breaks down sugar molecules after they enter the cell. What results from this process?
(A) growth of bacteria
(B) release of energy
(C) activity of enzymes
(D) production of oxygen
Answer: (B) release of energy |
MEA_2011_8_2 | What causes a person to have blue eyes? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"eating foods high in protein at a young age",
"having a brother or sister with blue eyes",
"being overexposed to the Sun at a young age",
"receiving a gene for blue eyes from each parent"
]
} | D | Question: What causes a person to have blue eyes?
(A) eating foods high in protein at a young age
(B) having a brother or sister with blue eyes
(C) being overexposed to the Sun at a young age
(D) receiving a gene for blue eyes from each parent
| Answer: (D) receiving a gene for blue eyes from each parent | Answer: (B) having a brother or sister with blue eyes | Question: What causes a person to have blue eyes?
(A) eating foods high in protein at a young age
(B) having a brother or sister with blue eyes
(C) being overexposed to the Sun at a young age
(D) receiving a gene for blue eyes from each parent
Answer: (D) receiving a gene for blue eyes from each parent |
Mercury_7009503 | When an atom loses or gains an electron, it changes | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"atomic mass.",
"atomic number.",
"charge.",
"element."
]
} | C | Question: When an atom loses or gains an electron, it changes
(A) atomic mass.
(B) atomic number.
(C) charge.
(D) element.
| Answer: (C) charge. | Answer: (D) element. | Question: When an atom loses or gains an electron, it changes
(A) atomic mass.
(B) atomic number.
(C) charge.
(D) element.
Answer: (C) charge. |
Mercury_411730 | In which pair of elements are both metalloids? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Sn and Sb",
"Sb and Te",
"Te and I",
"I and Xe"
]
} | B | Question: In which pair of elements are both metalloids?
(A) Sn and Sb
(B) Sb and Te
(C) Te and I
(D) I and Xe
| Answer: (B) Sb and Te | Answer: (C) Te and I | Question: In which pair of elements are both metalloids?
(A) Sn and Sb
(B) Sb and Te
(C) Te and I
(D) I and Xe
Answer: (B) Sb and Te |
Mercury_7136045 | Florida has a large supply of phosphate that ancient seas deposited millions of years ago. The phosphate contains the remains of animals that were deposited in layers on the sea floor. Which type of rock did the phosphate become? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"intrusive igneous",
"extrusive igneous",
"clastic sedimentary",
"organic sedimentary"
]
} | D | Question: Florida has a large supply of phosphate that ancient seas deposited millions of years ago. The phosphate contains the remains of animals that were deposited in layers on the sea floor. Which type of rock did the phosphate become?
(A) intrusive igneous
(B) extrusive igneous
(C) clastic sedimentary
(D) organic sedimentary
| Answer: (D) organic sedimentary | Answer: (C) clastic sedimentary | Question: Florida has a large supply of phosphate that ancient seas deposited millions of years ago. The phosphate contains the remains of animals that were deposited in layers on the sea floor. Which type of rock did the phosphate become?
(A) intrusive igneous
(B) extrusive igneous
(C) clastic sedimentary
(D) organic sedimentary
Answer: (D) organic sedimentary |
Subsets and Splits