What is happening to the desert hillsides?The topsoil is being eroded The surface is being irrigated

Câu hỏi :

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

A. The topsoil is being eroded

B. The surface is being irrigated

C. There are fewer types of plants growing on them

D. There are fewer streams running through them

* Đáp án

A

* Hướng dẫn giải

Đáp án A

Thông tin “the compaction of the sandy arid soil resulting from the passage of just one motorcycle markedly reduced the infiltration ability of the soil and created a stream of rain runoff water that eroded the hillside surface” → đất trên những sườn đồi sa mạc đang bị sói mòn

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