EDUCATION (CBSE/UGC NET)

EDUCATION UGC NET

ENVIRONMENTAL STUDIES

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which of the following is a biodegradable pollutant?

A	CFC
B	DDT
C	Freon’s
D	Sewage

Explanation:

Detailed explanation-1: -Waste water is generally known as sewage and it is a biodegradable pollutant.

Detailed explanation-2: -Sewage can be decomposed into simpler substances by the action of microorganisms that are naturally biodegradable in nature. Thus, sewage is a biodegradable pollutant.

Detailed explanation-3: -The best example of a biodegradable substance is the domestic sewage which can be rapidly decomposed by natural processes.

Detailed explanation-4: -Examples-food waste, paper waste, human waste, green waste, etc.

Detailed explanation-5: -DDT, plastics, polythene, bags, insecticides, pesticides, mercury, lead, arsenic, metal articles like aluminum cans, synthetic fibres, glass objects, iron products and silver foils are non-biodegradable pollutants.

There is 1 question to complete.