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Taxonomy

How lichens h...

Question

How lichens help in indicating the pollutants in air?

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Solution

Lichens are very sensitive to the levels of contaminants like sulphur dioxide in the air. Lichens generally grow on the barks of the trees. The trees on the road-side do not show this lichen growth, if in any area the growth of lichens decreases or vanishes the air will be polluted.

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