Pollution of Air and Water (CBSE Class-8 Science): Questions 1 - 7 of 17

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Question number: 1

» Pollution of Air and Water » Air Pollution » Acid Rain and Taj Mahal

MCQ▾

Question

Corrosion of marble of the monuments due to acid rain is called as:

Choices

Choice (4) Response

a.

Marble cancer

b.

Yellowing of the marble

c.

Acid rain

d.

All of the above

Question number: 2

» Pollution of Air and Water » Water Pollution » Prevention of Water Pollution

MCQ▾

Question

Different methods used to purify water are:

Choices

Choice (4) Response

a.

Chlorination

AND

Ultraviolet rays

b.

Boiling

c.

Use the physical method of removing impurities

d.

All a. , b. and c. are correct

Question number: 3

» Pollution of Air and Water » Water Pollution » Water Treatment Plant

MCQ▾

Question

Water treatment plant should be installed in all:

Choices

Choice (4) Response

a.

Companies

b.

Industrial areas

c.

Houses

d.

None of the above

Question number: 4

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

MCQ▾

Question

Man-Made resources which lead to air pollution are:

Choices

Choice (4) Response

a.

Invention of automobiles

AND

Industrialization

b.

Overpopulation, deforestation

c.

Urbanization

d.

All a. , b. and c. are correct

Question number: 5

» Pollution of Air and Water » Water Pollution » Water Treatment Plant

MCQ▾

Question

Water treatment process can be categorized as:

Choices

Choice (4) Response

a.

Domestic water treatment

b.

Industrial water treatment

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 6

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

MCQ▾

Question

Green House Gases are:

Choices

Choice (4) Response

a.

Water Vapours, Methane

b.

Carbon dioxide, nitrogen oxide

c.

Ozone

d.

All a. , b. and c. are correct

Question number: 7

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Air Pollution

b.

Global warming

c.

Green House effect

d.

All of the above

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