Question

Lichen do not grow in cities because of the

• A. Absence of the right type of algae and fungi
• B. Lack of moisture
• C. SO${}_2$ pollution
• D. Absence of natural habitats

Answer 1

The correct option is C SO${}_2$ pollution

Lichen is the composite organisms arising from algae or cyanobacteria. They are sensitive to $S{O}_2$ due to their efficient absorption system, which results in a fast accumulation of Sulphur. It results in the destruction of chlorophyll and inhibition of photosynthesis.

The correct answer is C.