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L_1004
refraction
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FIGURE 1.1 Click image to the left or use the URL below. URL: https://www.ck12.org/flx/render/embeddedobject/179078
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saturation
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FIGURE 1.1
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scientific measuring devices
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FIGURE 1.1
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scientific measuring devices
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FIGURE 1.2
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scientific measuring devices
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FIGURE 1.3
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solenoid
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FIGURE 1.1
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solids
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FIGURE 1.1
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solids
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FIGURE 1.2
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solids
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FIGURE 1.3
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solubility
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FIGURE 1.1
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solute and solvent
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FIGURE 1.1 To dissolve a nonpolar solute such as oil-based paint, a nonpolar solvent such as paint thinner must be used.
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solute and solvent
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FIGURE 1.2
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solutions
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FIGURE 1.1
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solutions
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FIGURE 1.2
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solutions
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FIGURE 1.3
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states of matter
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FIGURE 1.1
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states of matter
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FIGURE 1.2
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temperature
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FIGURE 1.1
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the nature of science
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FIGURE 1.1 The Scientific Method.
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the nature of science
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FIGURE 1.2 Soil is often lost from ground that has been plowed.
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the nature of science
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FIGURE 1.3 Rather than breaking up soil like in this picture, the farmer could try no-till farming methods.
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the nature of science
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FIGURE 1.4 A pair of farmers take careful measure- ments in the field.
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the nature of science
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FIGURE 1.5 Earths Center.
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the nature of science
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FIGURE 1.6 A collision showing a meteor striking Earth.
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the nature of science
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FIGURE 1.7 Safety Symbols: A. Corrosive , B. Oxidiz- ing Agent, C. Toxic, D. High Voltage.
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the nature of science
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FIGURE 1.8 A medical researcher protects herself and her work with a net cap, safety goggles, a mask, and gloves.
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erosion and deposition by wind
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FIGURE 10.21 Wind transports particles in different ways depending on their size (left). A dust storm in the Middle East (right).
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erosion and deposition by wind
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FIGURE 10.22 Sand blown by fierce winds have carved this rock in to an interesting shape.
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erosion and deposition by wind
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FIGURE 10.23 Sand dunes form where the wind deposits sand. (A) Desert sand dunes. (B) Sand dunes line many beaches like this one in Australia.
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erosion and deposition by wind
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FIGURE 10.24 A sand dune has a gentle slope on the side the wind blows from. The opposite side has a steep slope. This side is called the slip face.
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erosion and deposition by wind
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FIGURE 10.25 Loess cliffs in Mississippi.
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history of earths life forms
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FIGURE 12.10 (A) Peacocks have tremendous feather displays to attract mates. (B) The Namib Desert Beetle has bumps on its back for collecting water. (C) Octopuses use their eight arms to hold on to the ground, hold on to prey and to escape predators. (D) Saguaro cacti are adapted for conserving water in the desert. (E) A mountain hare is well camouflaged in snow in winter.
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history of earths life forms
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FIGURE 12.11 Genetic mutation is central to the creation of biological diversity.
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history of earths life forms
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FIGURE 12.12 Ancient horses were quite different from present-day horses.
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history of earths life forms
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FIGURE 12.13 Mudskippers are fish that are able to walk short distances.
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history of earths life forms
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FIGURE 12.14 Halkieria, or scale worms, are an example of a fossil life from the Cambrian.
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history of earths life forms
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FIGURE 12.15 Plesiosaurs were swimming dinosaurs.
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history of earths life forms
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FIGURE 12.16 (A) A sea dragon is a type of fish. (B) African maribou. (C) Elephant shrew. (D) A mountain gorilla mother holding her baby. (E) A dolphin pod. Era Millions of Years Ago 251 Major Forms of Life Age of dinosaurs begins
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air movement
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FIGURE 15.19 Differences in air temperature cause con- vection currents and wind.
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air movement
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FIGURE 15.20 Land and sea breezes blow because of daily differences in heating.
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air movement
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FIGURE 15.21 Monsoons blow over southern Asia.
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air movement
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FIGURE 15.22 Global winds occur in belts around the globe.
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air movement
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FIGURE 15.23 This jet stream helps planes fly quickly from west to east over North America. How do you think it affects planes that fly from east to west?
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changing weather
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FIGURE 16.6 North American air masses.
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changing weather
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FIGURE 16.7 Cold fronts often bring stormy weather.
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changing weather
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FIGURE 16.8 Warm fronts generally bring cloudy weather.
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changing weather
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FIGURE 16.9 How does an occluded front differ from a warm or cold front?
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storms
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FIGURE 16.11 A coast guard officer looks for survivors of Hurricane Katrina.
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storms
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FIGURE 16.12 A thunderhead is a cumulonimbus cloud.
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storms
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FIGURE 16.13 Lightning flashes across an Arizona sun- set.
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storms
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FIGURE 16.14 Tornadoes are small but mighty storms.
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storms
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FIGURE 16.15 Tornadoes are most common in the cen- tral part of the U.S.
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storms
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FIGURE 16.16 The eye of this hurricane is easy to see from space.
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storms
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FIGURE 16.17 Storm surge can cause serious flooding.
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storms
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FIGURE 16.18 Blizzard in Washington, D.C. Blizzards are unusual in Washington, D.C many parts of the United States. Do they ever occur where you live?
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weather forecasting
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FIGURE 16.23 The greater the air pressure outside the tube, the higher the mercury rises inside the tube. Mercury can rise in the tube because theres no air pressing down on it.
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weather forecasting
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FIGURE 16.24 Some of the most commonly used weather instruments. (a) Thermome- ter: temperature, (b) Anemometer: wind speed, (c) Rain gauge: amount of rain, (d) Hygrometer: humidity, (e) Wind vane: wind direction, (f) Snow gauge: amount of snow.
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weather forecasting
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FIGURE 16.25 Weather stations collect data on land and sea. Weather balloons, satellites, and radar collect data in the atmosphere. Many weather satellites orbit Earth. They constantly collect and transmit weather data from high above the surface. A radar device sends out radio waves in all directions. The waves bounce off water in the atmosphere and then return to the sender. The radar data shows where precipitation is falling. Its raining in the orange-shaded area shown above.
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weather forecasting
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FIGURE 16.26 This weather map shows air pressure contours. Which state has the lowest air pressure shown on the map?
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climate and its causes
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FIGURE 17.2 Find the cool spot in Asia at 30 north lat- itude. Why is it cool for its latitude? (Hint: What else might influence temperature?)
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climate and its causes
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FIGURE 17.3 Global air currents are shown on the left. You can see how they affect climate on the right.
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climate and its causes
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FIGURE 17.4 The usual direction of the wind where you live depends on your latitude. This determines where you are in the global wind belts.
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climate and its causes
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FIGURE 17.5 The Gulf Stream moves warm equatorial water up the western Pacific and into northern Europe, where it raises temper- atures in the British Isles.
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climate and its causes
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This diagram shows the effect of rains on hills. The moist air from the green side of the hills rising up in the air and condenses as water vapor. This is called precipitation. The other side of the hill form the rain shadow region. Rain shadow region is a region having little rainfall because it is sheltered from prevailing rain-bearing winds by a range of hills. The dry air descends from this region.
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climate and its causes
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The diagram is a representation of how a rain shadow is formed. A rain shadow is a dry region of land on the side of a mountain range that is protected from the prevailing winds. Prevailing winds are the winds that occur most of the time in a particular location on the Earth. The protected side of a mountain range is also called the lee side or the down-wind side. Prevailing winds carry air toward the mountain range. As the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. On this side of the mountains, called the windward side, precipitation falls in the form of rain or snow. The windward side of a mountain range is moist and lush because of this precipitation. Once the air passes over the mountain range, it moves down the other side, warms, and dries out. This dry air produces a rain shadow. Land in a rain shadow is typically very dry and receives much less precipitation and cloud cover than land on the windward side of the mountain range.
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ecosystems
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FIGURE 18.1 An ecosystem can be big or small. A small ecosystem can be part of a larger ecosystem.
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ecosystems
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FIGURE 18.2 Which abiotic factors do you see here?
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ecosystems
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FIGURE 18.3 A lion hunts a water buffalo. What is the water buffalos niche?
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ecosystems
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FIGURE 18.4 Microbes use chemicals to make food. The chemicals pour out of a crack on the ocean floor at a mid-ocean ridge. What consumers live in this ecosystem?
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ecosystems
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FIGURE 18.5 Examples of the main types of consumers. Can you name other consumers of each type?
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ecosystems
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FIGURE 18.6 Ways consumers get food. Do you know how earthworms get food?
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ecosystems
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FIGURE 18.7 What do the arrows stand for in a food chain?
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ecosystems
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FIGURE 18.8 The owl in this food web consumes at two different levels. What are they?
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ecosystems
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FIGURE 18.9 This diagram shows two cycles. One is the cycle of energy, the other is the cycle of matter. Compare the two cycles. Do you see how the Sun keeps adding energy? Thats because energy is lost at each step of the cycle. Matter doesnt have to be added. Can you explain why?
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air masses
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FIGURE 1.1
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biological communities
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FIGURE 1.1
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biological communities
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FIGURE 1.2
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biological communities
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FIGURE 1.3 Birds living in a saguaro cactus. A habitat may be a hole in a cactus or the underside of a fern in a rainforest. It may be rocks and the nearby sea.
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blizzards
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FIGURE 1.1
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blizzards
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FIGURE 1.2
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blizzards
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FIGURE 1.3
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branches of earth science
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FIGURE 1.1
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branches of earth science
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FIGURE 1.2
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branches of earth science
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FIGURE 1.3
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collecting weather data
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FIGURE 1.1 A land-based weather station.
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collecting weather data
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FIGURE 1.2
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collecting weather data
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FIGURE 1.3
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effect of continental position on climate
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FIGURE 1.1
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effects of air pollution on the environment
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FIGURE 1.1
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effects of air pollution on the environment
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FIGURE 1.2
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evolution plate tectonics and climate change
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FIGURE 1.1
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extinction and radiation of life
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FIGURE 1.1
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flow of matter in ecosystems
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FIGURE 1.1
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global wind belts
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FIGURE 1.1 The major wind belts and the directions that they blow.
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global wind belts
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FIGURE 1.2
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history of cenozoic life
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FIGURE 1.1 The saber-toothed cat lived during the Pleistocene.
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history of mesozoic life
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FIGURE 1.1
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history of paleozoic life
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FIGURE 1.1 Trilobites were shallow marine animals that flourished during the lower Paleozoic.
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history of paleozoic life
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FIGURE 1.2
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hurricanes
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FIGURE 1.1
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