The author mentions "the green film of plant life that grows on stagnant pools" (lines 6-7
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The author mentions "the green film of plant life that grows on stagnant pools" (lines 6-7) in order to explain ______.
A.how the sun affects lichens
B.why plants depend on water
C.where fungi become algae
D.what algae arc
请帮忙给出正确答案和分析,谢谢!
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