A) lichens are not related with pollution
B) They act as bioindicators of pollution
C) They treat the polluted water
D) They promote pollution
Correct Answer: B
Solution :
Growth of lichens is inhibited by air pollution. Hence, atmospheric pollution causes decrease in their populations. Lichens are the symbiotic association between algae and fungi. In this fungi absorb water and minerals from the soil which is utilized by algae in the process of photosynthesis. In exchange of this fungi take prepared material from algae.
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