Eutrophication of a lake means, it:

is low in nutrients

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is high in nutrients

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has a high temperature

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has excess amount of organic matter

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Solution

The correct option is C is high in nutrients
Eutrophication of a lake means, it is high in nutrients. High nutrients leads to explosive growth of algae and plants which decays and consumes oxygen from water. Oxygen depletion in turn kills aquatic animals.

Option B is correct.

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