environment medium fill in the blank

The phenomenon where pollutants become more concentrated at higher trophic levels in a food chain is called biological _____.

  1. Degradation
  2. Magnification
  3. Dilution
  4. Accumulation

Answer: Magnification

Biomagnification causes toxins like DDT or mercury to increase in concentration as they move up the food chain, affecting top predators most.

Topic Environmental Pollution
Exam Relevance UPSC, SSC

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