According to the passage, what is the most awful effect of using fuel wood?

Câu hỏi :

According to the passage, what is the most awful effect of using fuel wood?

A. It may cause fire.

B. It damages their houses.

C. It affects the local scenery.

D. It causes indoor air pollution.

* Đáp án

D

* Hướng dẫn giải

Dẫn chứng: Moreover, it causes indoor air pollution because of heavy smoke.

Chọn đáp án D. It causes indoor air pollution: Nó gây ra ô nhiễm không khí trong nhà.

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