Pollution of Air and Water Test

Result

Pollution of Air and Water Test - 30

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Weekly Quiz Competition

Question 1
1 / -0

A popular household filter is __________ filter.

A
smoke

B
water

C
candle type

D
none of the above

Solution

A popular household filter is a candle type filter that is used to purify the water at home.
Question 2
1 / -0

Which of the following natural phenomenons releases chemicals which cause acid rains?

A
Volcanic eruptions

B
Lightning

C
Rotting vegetation

D
All

Solution

All the above phenomenons release sulphur and nitrogen oxides which causes acid rains.
Volcanic eruptions have fumes that contain sulfur oxides.
Lightning bolts are a natural source of nitrogen oxides. The very high temperature in the vicinity of a lightning bolt causes the gases oxygen and nitrogen in the air to react to form nitric oxide.
Rotten vegetation also releases sulfur oxides and carbon oxides, which are acidic in nature.

Hence, all options are correct.
Question 3
1 / -0

Which river sustains most of the northern, central and eastern Indian population?

A
Sabarmati

B
Narmada

C
Ganga

D
Yamuna

Solution

Ganga sustains most of the northern, central and eastern Indian population. Millions of people depend on it for their daily needs and livelihood.
Question 4
1 / -0

______ is a commonly used chemical method for purifying water.

A
Chlorination

B
Flourination

C
Bromination

D
Boiling

Solution

Chlorination is a commonly used chemical method for purifying water. It kills germs in the water.
Question 5
1 / -0

What makes the normal rain water acidic?

A
Presence of dust particles in air

B
Presence of $$CO_2$$ in atmosphere

C
Presence of ozone in atmosphere

D
None of the above

Solution

$$CO_2$$ in the air dissolves in water to form carbonic acid. This makes normal rain water slightly acidic.
Question 6
1 / -0

What causes the global warming?

A
Burning of fossil fuels

B
Deforestation

C
Industrialization

D
All of the above

Solution

Global warming is the slow increase in the average temperature of the earth’s atmosphere because of an increased amount of greenhouse gases.
All the given activities increase the number of greenhouse gases in the atmosphere and hence global warming.
Question 7
1 / -0

Which organization found that Ganga is one of the ten most endangered rivers in the world?

A
WWE

B
WWF

C
WWW

D
PETA

Solution

World Wide Fund for Nature (WWF) found that Ganga is one of the ten most endangered rivers in the world, as it is highly polluted and needs to be cleaned urgently. They also mentioned that river is ‘dead’ at many places where the pollution levels are so high that aquatic life cannot survive.
Question 8
1 / -0

What are the factors responsible for pollution of the river?

A
Defecating in the river

B
Throwing garbage, flowers, idols of gods into river

C
Industrial units discharging toxic chemical wastes into the river

D
All of the above

Solution

All of the given options add harmful chemicals and toxins to the water, making it unfit for the habitation of aquatic animals, or use by human beings.
Hence, the correct option is D.
Question 9
1 / -0

Which is not the green house gas among the following?

A
Chlorofluorocarbons

B
Argon

C
Water vapour

D
Carbon-dioxide

Solution

Greenhouse gas is the gas that has the property of absorbing infrared radiation emitted from Earth's surface and reflecting it back to Earth's surface, thus contributing to the greenhouse effect.

Carbon dioxide, methane, nitrous oxide, and water vapour are the most important greenhouse gases.
Argon is not a greenhouse gas because it allows the sunlight rays to pass through them which further does not promote the rise in temperature of the earth.
Option $$B$$ is correct.
Question 10
1 / -0

_________ is the man-made cause of deforestation.

A
Urbanization

B
Forest Fire

C
Droughts

D
All of the above

Solution

Urbanization is the man-made cause of deforestation. Whereas forest fires and droughts are natural causes of deforestation.
Urbanization is due to the increased population. It is caused due to human activities. Urbanization decreases the area under forests which leads to a reduction in the number of forest trees.

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Re-Attempt Weekly Quiz Competition

Pollution of Air and Water Test - 30

Result

Pollution of Air and Water Test - 30

Score

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Rank

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SHARING IS CARING

Question 1

smoke

water

candle type

none of the above

Solution

Question 2

Volcanic eruptions

Lightning

Rotting vegetation

All

Solution

Question 3

Sabarmati

Narmada

Ganga

Yamuna

Solution

Question 4

Chlorination

Flourination

Bromination

Boiling

Solution

Question 5

Presence of dust particles in air

Presence of $$CO_2$$ in atmosphere

Presence of ozone in atmosphere

None of the above

Solution

Question 6

Burning of fossil fuels

Deforestation

Industrialization

All of the above

Solution

Question 7

WWE

WWF

WWW

PETA

Solution

Question 8

Defecating in the river

Throwing garbage, flowers, idols of gods into river

Industrial units discharging toxic chemical wastes into the river

All of the above

Solution

Question 9

Chlorofluorocarbons

Argon

Water vapour

Carbon-dioxide

Solution

Question 10

Urbanization

Forest Fire

Droughts

All of the above

Solution

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