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Question
Spraying of D.D.T. on crops produces pollution of
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Solution
The correct option is C Air, soil and water
Some of the common pollutants are non biodegradable, e.g : persistent pesticides like organochlorine or chlorinated hydrocarbons like DDT. These chemicals pass into food chains and increase in amount per unit weight of organisms with the rise in trophic level due to their accumulation in animal fats. Higher the trophic level of an organism in the food chain, greater will be the accumulation of pollutant. As these chemicals are persistent and non biodegradable, they pollute air, soil and water and in which ever organism they reach they simply keep on increasing in concentration. The phenomenon is called biomagnification.
Some of the common pollutants are non biodegradable, e.g : persistent pesticides like organochlorine or chlorinated hydrocarbons like DDT. These chemicals pass into food chains and increase in amount per unit weight of organisms with the rise in trophic level due to their accumulation in animal fats. Higher the trophic level of an organism in the food chain, greater will be the accumulation of pollutant. As these chemicals are persistent and non biodegradable, they pollute air, soil and water and in which ever organism they reach they simply keep on increasing in concentration. The phenomenon is called biomagnification.
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