Question

Eutrophication is:

• A. Natural aging of a lake by nutrient enrichment
• B. Excessive growth of planktonic forms
• C. Increase in concentration of the toxicant at successive trophic levels
• D. Increased demand for oxygen microorganisms

Answer 1

Answer:

A. Natural aging of a lake by nutrient enrichment

• Eutrophication is the process in which a water body becomes overly enriched with nutrients, leading to the plentiful growth of simple plant life.

• The excessive growth (or bloom) of algae and plankton in a water body are indicators of this process.