Question

Which of the following is an indicator of air pollution ------- a) lichens;b) algae. c). cycas. d) bryophytes

Answer 1

hey dear
here is your answer

Lichen is an indicator of air pollution.

lichen is sensitive to SO2 gas.

hope it helps :)

Answer 2

Answer:

a) lichens

Explanation:

Lichens are touchy to air pollutants due to the fact the algal accomplice absorbs maximum of the vitamins from the air. If the air has an multiplied quantity of sulfur dioxide, a toxic compound is shaped in lichens that bring about their death.

Hence, an appropriate solution is 'Lichens'

Lichens as Bio-Indicators

Lichens are touchy to atmospheric pollutants inclusive of nitrogen (N) due to the fact they get hold of all their vitamins and water from moist and dry atmospheric deposition (fall out). Nitrogen deposition can boom the weight of vitamins.

Bioindicators are residing organisms that reply in an specifically clean manner to a alternate withinside the environment. The hardy lichens are beneficial bioindicators for air pollutants, espeially sulfur dioxide pollutants, seeing that they derive their water and important vitamins especially from the surroundings in place of from the soil.

What are lichens?

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Name the member associated in lichen . how does each member benefit from that other?​

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