Progressive accumulation of non-degradable chemicals at each trophic level is called:
ABiological oxidation
BChemical weathering
CEcological succession
DBiological magnification
Answer & Solution
Correct answer: D. Biological magnification
1. Pesticides enter through soil and water.
2. The phenomenon is biological magnification.
3. Grains and vegetables carry residues.
_Source: syllabus Science, Chapter 15, Our Environment._
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