Which of these are sensitive to sulphur dioxide pollution?
Lichens
Mosses
Algae
Ferns
A
Mosses
B
Algae
C
Lichens
D
Ferns
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Solution
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The correct option is B Lichens Lichens are very sensitive to sulphur dioxide pollution in the air. Lichens can be used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere.
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