alleryDDT at 0.003 ppb in water reaches 25 ppm in fish-eating birds. This rise up the food chain is:
AEutrophication
BPhotosynthesis
CDecomposition
DBiomagnification
Answer & Solution
Correct answer: D. Biomagnification
1. DDT cannot be broken down or excreted.
2. It passes on and concentrates at each trophic level.
3. That is biomagnification.
_Source: syllabus Biology, Chapter 16, Environmental Issues._
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