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)