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Question: Answered & Verified by Expert
A lake which is rich in organic waste may result in
BiologyEnvironmental IssuesNEETNEET 2016 (Phase 2)
Options:
  • A Increased population of aquatic organisms due to minerals
  • B Drying of the lake due to algal bloom
  • C Increased population of fish due to lots of nutrients
  • D Mortality of fish due to lack of oxygen
Solution:
2116 Upvotes Verified Answer
The correct answer is: Mortality of fish due to lack of oxygen
Micro-organisms involved in biodegradation of organic matter consume lot of oxygen, oxygen as a result there is a sharp decline in dissolved oxygen in water that causes mortality of fish and other aquatic creatures.

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