DDT residues are rapidly passed through food chain causing biomagnification because DDT is
moderately toxic
non-toxic to aquatic animals
water soluble
lipo soluble
As we learnt in
Biomagnification -
Biomagnification refers to increase in concentration of the toxicant at successive trophic levels. This happens because a toxic substance accumulated by an organism cannot be metabolised or excreted, and is thus passed on to the next higher trophic level.
- wherein
This phenomenon is wellknown for mercury and DDT.
Option 1)
moderately toxic
Incorrect
Option 2)
non-toxic to aquatic animals
Incorrect
Option 3)
water soluble
Incorrect
Option 4)
lipo soluble
Correct