Some reliable indicators of air pollutants (SO2 and noxious gases) are:

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309ForestryMedium

ANeem’ tree and Eichhornia

BGreen algae and aquatic liverworts

CLichens and mosses

DFerns and Cycas

Correct answer

C. Lichens and mosses

Explanation

The correct answer is Lichens and mosses.

Some reliable indicators of air pollutants (SO2 and noxious gases) are: - Answer and Explanation | Academy of Pakistan