Multiple choice

Eutrophic lakes are those

  1. which have rich accumulation of organic matter

  2. which are deep with rocky, steep sides

  3. which have less circulation of nutrients

  4. which are artificially produced
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Eutrophic lakes are characterized by high nutrient content (especially nitrogen and phosphorus), leading to excessive algal and plant growth. This results in rich accumulation of organic matter in the sediments from dead organisms. Option B describes oligotrophic lakes, C describes dystrophic lakes, and D refers to artificial reservoirs rather than natural eutrophic lakes.

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