Question

.......... is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both.

• A. Biological magnification
• B. Global warming
• C. Eutrophication
• D. Acid rain

Answer 1

The correct option is C Eutrophication

Eutrophication is the increase in the percentage of nutrient in the water bodies which encourages the vigorous growth of algae. As the lakes fertility increases, algal bloom occurs. Algal bloom causes the depletion of water quality and fish mortality and dead remains begin to be deposited on the lake bottom. Over the year, lake finally gets converted into the land. Thus, the correct answer is option C.