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21 June, 14:21

Which of these human actions has the greatest influence on the quality of air?

A.

building houses

B.

driving cars

C.

creating dams

D.

littering

+1
Answers (2)
  1. 21 June, 14:29
    0
    B

    Explanation:

    Driving cars is one of the main problems for the air quality. It produces a significant amounts of nitrogen oxides, carbon monoxide, and other pollution.
  2. 21 June, 15:57
    0
    cars it should be
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