Question

High level of which pollutant in air the lichen is the most susceptible?



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Answer 1

Explanation:

Ozone

Ozone at ground level is a harmful air pollutant, because of its effects on people and the environment, and it is the main ingredient in “smog." Learn more about air emission sources.

Graphis elegans belongs to the group known as script lichens, as they look rather like writing. The most well-known of these is Graphis scripta, which is common in our area on Hazel and other alkaline-barked trees. ... It does not like dense shade, and grows well on trees at the edge of a wood.