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Which of the following are most suitable indicators of SO2 pollution in the environment ?
- Option 1)
Conifers
- Option 2)
Algae
- Option 3)
Fungi
- Option 4)
Lichens
Answers (1)
As we learnt in
pioneer species -
The species that invade a bare area are called pioneer species.
- wherein
In primary succession on rocks these are usually lichens which are able to secrete acids to dissolve rock, helping in weathering and soil formation.
Lichens are widely used as environmental indicators or bio indicator. If air is badly polluted with SO2 there may be no lichens present.
Option 1)
Conifers
Incorrect
Option 2)
Algae
Incorrect
Option 3)
Fungi
Incorrect
Option 4)
Lichens
Correct
View full answer
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