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Which of the following is used as an atmospheric pollution indicator?

a. Lepidoptera

b. Lichens

c. Lycopersicon

d. Lycopodium

Answers (1)

The answer is the option (b) Lichens

Explanation: Air is the primary source of most elements for Lichens as they do not have roots. They will not grow in the polluted areas and thus are used as a reliable indicator of atmospheric pollution.

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