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Trees take ________ from the air, and release ________ into the air.

[  ]

A.harmful gas; oxygen

B.oxygen; harmful gas

C.harmful oxygen; gas

D.oxygen; oxygen

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C. more electricity is used, less greenhouse gases are produced

D. less electricity is used, more greenhouse gases are produced

4.Which is the following is NOT TRUE according to the passage?

A. Driving cars on sunlight helps to stop global warming.

B. When cars burn fossil fuels, they produce greenhouse gases.

C. When trees grow, they send carbon dioxide into the air.

D. By planting more trees, we can lower the number of greenhouse gases in the air.

 

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A.Driving cars on sunlight helps to stop global warming.

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