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Question
The excessive use of chemical fertilisers in the fields cause
The excessive use of chemical fertilisers in the fields cause
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Solution
The correct option is A Eutrophication
The streams draining the fertilisers into the lake introduce nutrients such as nitrogen and phosphorus, which encourage the growth of algae. As the lake's fertility increases, algal bloom occurs which is known as eutrophication. Algal bloom causes the deterioration of water quality and death of aquatic plants and animals like fishes. This disturbs the aquatic equilibrium.Thus, the correct answer is option A.
The streams draining the fertilisers into the lake introduce nutrients such as nitrogen and phosphorus, which encourage the growth of algae. As the lake's fertility increases, algal bloom occurs which is known as eutrophication. Algal bloom causes the deterioration of water quality and death of aquatic plants and animals like fishes. This disturbs the aquatic equilibrium.
Thus, the correct answer is option A.
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