What does the forest strike mankind as permanent? [br] In a "primary succession"

游客2023-09-03 36

问题 What does the forest strike mankind as permanent? [br] In a "primary succession", what makes it possible for mosses to take root?

选项 A、The type of rock.
B、The amount of sunlight.
C、The amount of moisture.
D、The effect of lichens.

答案 D

解析本题为一般阅读理解题，需从段落的字里行间中找答案。第三段的第二句话中，作者提到了首先能在岩石上生存的植物是lichen(地衣)，然后在地衣生长之后，由于地衣的影响才能使moss(苔藓))的生长成为可能。

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Whatdoestheforeststrikemankindaspermanent?[br]Whyisa"secondarysucce