With reference to a fresh water lake, consider the following characteristics:
1. Richness in nutrients
2. Rapid turnover of phytoplankton
3. Depletion of dissolved oxygen
Which of the above is/are observed in a lake after its eutrophication?
A. 1 only
B. 1 and 2 only
C. 3 only
D. 1, 2 and 3
Answer: Option D
Solution (By Examveda Team)
Depletion of dissolved oxygen is observed in a lake after its eutrophication. Eutrophication is the process by which a body of water becomes enriched in dissolved nutrients (as phosphates), stimulating the growth of aquatic plant life usually resulting in the depletion of dissolved oxygen.This Question Belongs to Geography >> Hydrosphere
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