alleryThe natural aging of a lake by nutrient enrichment is called:
ADesertification
BEutrophication
CBiomagnification
DDeforestation
Answer & Solution
Correct answer: B. Eutrophication
1. Streams bring nitrogen and phosphorus into a lake.
2. Life burgeons and debris fills the basin over centuries.
3. This aging is eutrophication.
_Source: syllabus Biology, Chapter 16, Environmental Issues._
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