Moderate
This acts as bioindicator of air pollution:
Correct answer: B. Lichen
- A. Alga
- B. Lichen
- C. Pinus
- D. Mustard
- E. Fern
Explanation
Lichens absorb water and nutrients directly from the atmosphere, so pollutants such as sulphur dioxide quickly affect their growth and distribution. This sensitivity makes them useful indicators of air quality.
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Practise Forest Ecology
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