A location with luxuriant growth of lichens on the trees indicates that the:

A location with luxuriant growth of lichens on the trees indicates that the:
A Trees are very healthy
B Trees are heavily infested
C Location is highly polluted
D Location is not polluted

Detailed Solution

Lichens are very sensitive to air pollution, especially $SO_2$, and do not grow in polluted areas. Their luxuriant growth shows the location is not polluted.

Air pollution in past papers

5 questions from this chapter have appeared across 4 exam years.

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Practise Air pollution All 5 questions This chapter in 2014 AIPMT