Q. DDT residues are rapidly passed through food chain causing biomagnification because DDT is:
A) moderately toxic
B) non-toxic to aquatic animals
C) water soluble
D) lipo soluble
Explanation
[Solution from source] DDT is fat-soluble and cannot be metabolised or excreted, so it accumulates in fatty tissues and its concentration increases at each trophic level (biomagnification). A water-soluble substance would be excreted rather than accumulate. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.