In a “primary succession”, what makes it possible for mosses to take root

Câu hỏi :

Read the passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions.

A. The effect of lichens.

B. The amount of sunlight.

C. The amount of moisture.

D. The type of rock.

* Đáp án

* Hướng dẫn giải

Đáp án là A.

Dựa vào ý:…, called a primary succession, occurs first to colonize the barren land and the lichen surviving on bare rock.

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