Toxic Chemicals in Environment-Pesticides in Water (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 3 of 3

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Question number: 1

» Toxic Chemicals in Environment » Pesticides in Water

Appeared in Year: 2015

MCQ▾

Question

When DDT enters the human body, it is: (June)

Choices

Choice (4) Response

a.

Water soluble and easily excreted in urine

b.

Processed by enzymes and becomes a different compound, which is toxic

c.

Stored in the bones

d.

Fat soluble and stored in fat tissues

Question number: 2

» Toxic Chemicals in Environment » Pesticides in Water

Appeared in Year: 2014

MCQ▾

Question

Under aerobic biodegradation of DDT, which of the following compound is formed? (December)

Choices

Choice (4) Response

a.

DDE

b.

DDN

c.

DDS

d.

DDD

Question number: 3

» Toxic Chemicals in Environment » Pesticides in Water

Appeared in Year: 2009

MCQ▾

Question

How do insect pheromones work as bio pesticides?

Choices

Choice (4) Response

a.

Work as mating disruption agents in insects

b.

Kills bacteria

c.

Kills fungi

d.

Kills protist

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