Question

Run off components of fertilizers rich fields causes

• A. Turbidity of water bodies
• B. Eutrophication of water bodies
• C. Precipertation of toxic chemical
• D. Temperature variation in water

Answer 1

Answer: (B)

Eutrophication of water bodies

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.

Thus, the correct answer is option B.