Question

Lichen is indicator of which gas pollution

Answer 1

Lichens can be used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere. Lichens are plants that grow in exposed places such as rocks or tree bark.

Answer 2

Sulfur dioxide is released if the fuel contains sulfur compounds. This gas contributes to acid rain. Lichens can be used as air pollution indicators, especially of the concentration ofsulfur dioxide in the atmosphere. Lichens are plants that grow in exposed places such as rocks or tree bark.