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  • Brainly User
2014-12-23T18:26:50+05:30

Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both. It can be a natural process in lakes, occurring as they age through geological time. Eutrophication was recognized as a pollution problem in European and North American lakes and reservoirs in the mid-20th century.

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2014-12-23T18:50:25+05:30

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When the number of algae increases due to increase in nutrients in water bodies like lake or pond the condition is called as eutrophication.These algae uses most of the oxygen in the water bodies and this result in oxygen deficiency in those water bodies and so many fishes don't get enough oxygen and die.So eutrophication leads to ecological imbalance.
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