1.

Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as (a) eutrophication (b) pollution (c) biomagnification (d) accumulation

Answer»

The answer is (c) biomagnification

  • Eutrophication is richness of nutrient beyond optimum level. 
  • Eutrophication occurs due to run off from land. 
  • Introduction of an undesired substance into environment. 
  • Pollution leads to harmful effects on living organisms


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