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Chapter 18 Pollution of Air and Water Solutions

Question - 11 : -
Why does the increased level of nutrients in the water affect the survival of aquatic organisms?

Answer - 11 : -

An increase in the level of nutrients in a water body leads to an excessive increase in the population of algae in the water body. When these algae die, they serve as food for decomposers. A lot of oxygen is utilised in this process, consequently leading to a decrease in the level of oxygen dissolved in the water body. This in turn causes fishes and other aquatic organisms to die.

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