Human Reproduction Question 389

Question: Lichens are important in the studies on atmospheric pollution because they

Options:

A) Can grow in polluted atmosphere

B) Can readily multiply in polluted atmosphere

C) Efficiently purify the atmosphere

D) Are very sensitive to pollutants like sulphur dioxide

Show Answer

Answer:

Correct Answer: D

Solution:

Lichens (Usnea) are extremely sensitive to $ SO_2 $ and could be regarded as indicators of $ SO_2 $ pollution (indicators of pollutants.

Lichens have given Indices of Atmospheric Purity (IAP)