Question

1.How do plants affect water and air in return?​

Answer 1

HERE IS YOUR ANSWER

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Plants put down roots into the soil to draw water and nutrients up into the stems and leaves. Some of this water is returned to the air by transpiration. During dry periods, transpiration can contribute to the loss of moisture in the upper soil zone, which can have an effect on vegetation and food-crop fields.

Answer 2

Answer:

they take carbon dioxide and leave oxygen

they take poisonous water and leave fresh water