Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 năm 2023 có đáp án (Đề 6)

What does the author suggest is the main cause of pollution reduction? A. Fewer cattle and gas fields B. A smaller number of cars C. A curtailment of chemicals D. Less impact from burning for

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What does the author suggest is the main cause of pollution reduction?

Fewer cattle and gas fields

A smaller number of cars

A curtailment of chemicals

Less impact from burning forests

Giải thích

Chọn A