Some reliable indicators of air pollutants (SO2 and noxious gases) are:
Correct answer: C. Lichens and mosses
- A. Ferns and Cycas
- B. Green algae and aquatic liverworts
- C. Lichens and mosses
- D. Neem' tree and Eichhornia
Explanation
Lichens and mosses absorb substances directly from the atmosphere and lack protective structures that would prevent pollutant accumulation, making them useful bioindicators of SO2 and other gases. Ferns, Cycas, and aquatic plants are not generally as reliable for this purpose.
Last updated
Practise Forest Ecology
837 free Forest Ecology MCQs from Forestry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Forestry questions like this
Forestry is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
Related questions
5th June is celebrated as:
A biotic community comprises:
A branch of ecology which is concerned with the study of individual species at all stages of its life cycle in relation to environment is called:
A complex of several species and communities in various stages of succession maintained under similar climatic conditions is known as:
A crocodile had just eaten a lamb when a hawk saw the crocodile attacked it, and consumed it. The hawk is in ecological terms: