Why are lichens regarded as pollution indicators ? – InterviewSolution

InterviewSolution

1.	Why are lichens regarded as pollution indicators ?
Answer» The lichens are regarded as pollution indicators because they do not grow at the places which are polluted or they start disappearing from the areas as soon as the pollution starts taking place in such areas. Thus the presence of lichens indicates that there is no pollution in that area.

Discussion

No Comment Found

Related InterviewSolutions

Hundred metre surroundings of hospitals and schools are considered as silent zone. Justify it.
What is meant by ozone shield? Name two ozone depleting substances. How do the ozonedepleting substances affect the ozone shield? Write one damaging effects of ozone depletion on humans and plants respectively.
Three-mile Island, Chernobyl incidents are typical example for………pollution(a) Sound(b) Radioactivity(c) Water(d) Physical
Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancer? (a) Ammonia (b) Methane (c) Nitrous oxide (d) Ozone
Explain the role of lakes in an ecosystem.
What do you mean by Biochar? How it helps the environment?
Process of heating biomass in low oxygen environment is called as ___
What is carbon sequestration?
People’s movement for the protection of environment in Sirsi of Karnataka is ________ (a) Chipko movement (b) Amirtha Devi Bishwas movement (c) Appiko movement (d) None of the above
Write a comparative note on Carbon Foot Print (CFP).