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Question

What is the main cause of eutrophication?

A
Photosynthesis
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B
Fertilizers
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C
Killing of fish
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D
Flooding
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Solution

The correct option is B Fertilizers
Eutrophication is caused by human actions due to their dependence on using nitrate and phosphate fertilizers. Agricultural practices (in crop fields) and the use of fertilizers on lawns, golf courses and other fields contribute to phosphate and nitrate nutrient accumulation.

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