Question

DDT residues are rapidly passed through food chain causing biomagnifications because DDT is

• A. liposoluble
• B. moderately toxic
• C. non-toxic to aquatic animals
• D. water soluble

Answer 1

The correct option is A liposoluble

Many of the pesticides and insecticides such as DDT, aldrin and dieldrin are accumulated in the environment. They are fat soluble and generally non-biodegradable. They get 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 the biological magnification.