Question

Lichen and mosses do not grow in :-

• A. $C{O}_2$ polluted area
• B. $N{O}_2$ polluted area
• C. $CO$ polluted area
• D. $S{O}_2$ polluted area

Answer 1

The correct option is D $S{O}_2$ polluted area

Solution: Lichens are used as the indicators of air pollution. Air pollutants which are in the gaseous forms get dissolved in the rainwater, especially $S{O}_2$ (sulphur dioxide) can damage lichens and check them from growing. Places where lichens are not going, it indicates the air heavily polluted with sulphur dioxide.

So the correct answer is "$SO_2$ polluted area"