Pollution of Air and Water [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 7 - 13 of 17

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Question 7

Question MCQ▾

Increasing levels of Green House gases like Co2 are leading to:

Choices

Choice (4)Response

a.

Global warming

b.

Green House effect

c.

Air Pollution

d.

None of the above

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Question 8

Question MCQ▾

Pollutant used in refrigerators, air conditioners and aerosol sprays is

Choices

Choice (4)Response

a.

Methane

b.

CFC՚s

c.

Oxides of nitrogen

d.

None of the above

Edit

Question 9

Question MCQ▾

Green House gases create

Choices

Choice (4)Response

a.

Pollution

b.

Acid rain

c.

Green House effect

d.

Question does not provide sufficient data or is vague

Edit

Question 10

Question MCQ▾

GAP is a:

Choices

Choice (4)Response

a.

Garbage Action plan

b.

Ganga action plan

c.

Ground water pollution

d.

Ground water Action Plan

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Question 11

Question MCQ▾

Water gets polluted due to:

Choices

Choice (4)Response

a.

Indirect sources

b.

Direct sources

c.

Both a. and b. are correct

d.

None of the above

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Question 12

Question MCQ▾

Air pollution is defined as:

Choices

Choice (4)Response

a.

Contamination of air by impurities

b.

Addition of unwanted and harmful substances in the air

c.

Question does not provide sufficient data or is vague

d.

All of the above

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Question 13

Question MCQ▾

The substances which contaminate the air are called as:

Choices

Choice (4)Response

a.

Air pollutants

b.

Methane, Radon gas

c.

Dust particles, Smoke and carbon monoxide

d.

Volcanic activities

Edit