Update train_dataset.csv

train_dataset.csv

@@ -9,3 +9,4 @@ What happens if people illegaly dump waste?,"Consequences for illegal dumping in
 What causes water pollution?,"The main cause of water pollution includes sewage and waste water, farming, fossil fuel power plants, oil spills, industrial waste and maritime traffic."
 How can I help to improve the air quality?, "You can drive your car less, reduce gas consumption, keep your car (if you have one) in good condition, and refrain from burning any trash."
 How can I help to improve the water quality?, "If using a restroom is necessary, go to a proper facility that flushes into a safe enclosure. Implement rainwater harvesting systems to collect and store rainwater for drinking or recharging underground aquifers. Promote low-cost solutions, such as chlorine tablets or plastic bottles that can be exposed to sunlight, to improve water quality."
+When is the air pollution in LA the worst?,"The air quality in LA worsens in the summer time because of the heat and sunlight increasing  the ozone formation."