1.

“Eutrophication can lead to the death of a lake” Discuss.

Answer»
  • The main pollutants in sewage, industrial wastes and agricultural run off are nitrates and phosphorus.
  • These pollutants stimulates the growth of algae which leads to the depletion of oxygen in water bodies, causes the death of aquatic organisms.
  • Other toxic substances flowing into the lake can kill all the fishes and other animals in the water.
  • Due to the decomposition of these bodies the oxygen level further decreases in the water body
  • Ultimately this leads to the death of the lake.


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