Eutrophication of a lake is the process of .

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Eutrophication is the excessive growth of plants in a lake or other body of water, which leads to a buildup of dead plant matter (also known as organic matter) as these plants die and decompose. The excess plant growth is caused by an abundance of nutrients, such as nitrogen and phosphorus, which can come from sources like fertilizer runoff or sewage. As the organic matter accumulates, bacteria break it down, using up oxygen in the process and potentially creating conditions where fish and other aquatic animals cannot survive.

Eutrophication of a Lake Is the Process of