What is the main global warming gas?

What gas do plants use in Photosynthsis?

How do pesticides from farms enter the water cycle?

What is the main source of SO2 pollution in our atmosphere?

Excess nitrates and sufate in the air cause....

What is evaporation off of plants called?

When air rises in the atmosphere it......

What causes the depletion of the ozone?

Which is a nonrenewable source of energy?

Which is a renewable source of energy?

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