Pollution of Air and Water-Air Pollution (CBSE Class-8 Science): Questions 9 - 10 of 10

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Question number: 9

» Pollution of Air and Water » Air Pollution » Smog

MCQ▾

Question

Smog is the combination of the:

Choices

Choice (4) Response

a.

Smoke and fog

b.

Smoke and carbon monoxide

c.

Rain mixed with sulphur dioxide and nitrogen dioxide

d.

Pollution caused by chemicals

Question number: 10

» Pollution of Air and Water » Air Pollution » How Does Air Get Polluted?

MCQ▾

Question

Efforts made to reduce pollution from mobile sources include:

Choices

Choice (4) Response

a.

Using smokeless sources of energy

AND

Plantation of new trees

b.

Use of electrostatic precipitator

c.

Automobiles use should be lessened

d.

All a. , b. and c. are correct

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