Q. Eutrophication is caused due to

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Solution:

In eutrophication, amount of inorganic nutrients (mainly nitrogen and phosphorus) is increased, leading to the death of aquatic animals. Ageing of water bodies occur in nature which affect the aquatic ecosystem. Such natural ageing of a water body due to biological enrichment of its water, leading to depletion of species diversity, is called eutrophication. These inorganic nutrients promote the growth of algal bloom. Eutrophication is caused due to pollutants from human activity like industrial effluents, household effluents (detergents), etc. The main source to these nutrients were chemical fertilizers.