Question

Lichens do not like to grow in cities

• A. Because of absence of the right type of algae and fungi
• B. Because of lack of moisture
• C. Because of $S{O}_2$ pollution
• D. Because natural habitat is missing

Answer 1

The correct option is C Because of $S{O}_2$ pollution

Lichens are also known as bioindicators and grow in nonpolluted areas. The sulphur dioxide present in the polluted air kills lichens due to chemical formed by them. So lichens grow in cities like Shimla, Kullu as the air is free from pollution but it cannot be seen in cities like Delhi due to the high amount of pollution.

Thus the correct answer is option C.