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Eutrophication WikimediaEutrophication is the process by which water becomes enriched with nutrients, most commonly phosphorus and nitrogen.

Eutrophication occurs when excessive nutrients are added to an aquatic ecosystem, which causes explosive growth of plants and algae that eventually die and consume the oxygen in the body of water, creating a state known as hypoxia. The nutrients can be natural or artificial substances, such as detergents, fertilizers, and sewage.

The primary limiting factor for eutrophication is phosphate, as the availability of phosphorus generally promotes excessive plant growth and decay.

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