A) lipo soluble
B) moderately toxic
C) non-toxic to aquatic animals
D) water soluble
Correct Answer: A
Solution :
Many of pesticides, such as DDT, aldrin and dieldrin are accumulated in the environment. They are fat soluble and generally non-biodegradable. They got incorporated into the food chain and ultimately deposited in the fatty tissues of animals and humans. In the food chain, because of their build up, they get magnified in the higher trophic levels called biological magnification. The phenomenon of biological magnification is also reported for certain other pollutants such as, heavy metals, e.g. mercury, copper and radioactive substances as strontium 90.
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