A) Mercuric salts
B) Long chain phenolics
C) DDT
D) All of the above
Correct Answer: D
Solution :
[d] Non-degradable pollutant, A pollutant that is not broken down by natural processes. Some non-degradable pollutants, like the heavy metals, create problems because they are toxic and persistent in the environment. Others, like synthetic plastics, are a problem because of their sheer volume. However the degradation products of some pollutants are themselves polluting such as the products DDE and DDD produced from degradation of DDT.
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