Pollution of Air and Water Test

Result

Pollution of Air and Water Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

What is the effect of sulphur dioxide present in air on human beings?

A
Harms the skin and the lungs

B
Mixes with the blood and prevents it from carrying oxygen

C
Affects the heart and the liver

D
Raises the air temperature

Solution

Sulphur dioxide in air affects the skin and the lungs of human beings.
Question 2
1 / -0

How are lead particles released into the air?

A
By burning coal in thermal power stations

B
By burning petrol in automobiles

C
By burning biomass in chullahs

D
By burning LPG for cooking

Solution

Burning of leaded petrol in automobiles releases lead particles into the air and causes pollution.
Question 3
1 / -0

From which of the following bad effects does the ozone layer in our atmosphere protect us?

A
Carbon dioxide

B
CFC's

C
The sun's ultraviolet rays

D
All of the above

Solution

Ozone layer present in the atmosphere protects us from UV rays by preventing them from reaching the earth.
Question 4
1 / -0

How are monuments of marble destroyed?

A
By sulphur dioxide pollution.

B
By carbon monoxide pollution.

C
By pesticide pollution.

D
By dust particles.

Solution

Monuments of marble can be destroyed by acid rain because acid corrodes calcium carbonate (marble). The pollutants in air that cause acid rain are oxides of sulphur and nitrogen.
Question 5
1 / -0

Which of the major sources of air pollution contributes pollutants like chlorofluorohydrocarbons?

A
Industrial effluents

B
Aerosols

C
Sewage pollutants

D
All of the above

Solution

Aerosols are the sources of major pollutants like CFC's.
Question 6
1 / -0

Which of these is the major air pollutant in cities like Delhi and Kolkata?

A
Carbon monoxide

B
Hydrocarbons

C
Suspended particulate matter

D
Oxides of nitrogen

Solution

A major air pollutant in cities like Delhi and Kolkata is suspended particulate matter.
Question 7
1 / -0

Which of the following applications use catalytic converters?

A
Automobiles

B
Windmills

C
Poultry farms

D
Dairy farms

Solution

Automobiles use catalytic converters like platinum. These acts as catalysts to convert CO to CO₂.
Question 8
1 / -0

What is smog?

A
A combination of fire and water.

B
A combination of smoke and fog.

C
A combination of water and smoke.

D
A combination of air and water.

Solution

A combination of smoke and fog is smog.
Question 9
1 / -0

If there is no CO₂ in the atmosphere, what would happen to the earth's temperature?

A
It would be less than the present.

B
It would be the same as present.

C
It would be higher than the present.

D
It depends on the 0, content of air.

Solution

CO₂ traps heat and does not allow it to escape into space. Hence, if there is no CO₂ in the atmosphere, the earth's Temperature would be less than the present.
Question 10
1 / -0

Which of the following is NOT a feature of potable water?

A
Clean, colourless and odourless

B
Free from bacteria

C
Have excessive sodium, calcium and magnesium

D
Having dissolved oxygen and carbon dioxide

Solution

Potable water should be free from sodium, calcium and magnesium. Potable water should be clean, colourless and odourless, free from bacteria and must contain dissolved oxygen and carbon dioxide.

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Re-Attempt Weekly Quiz Competition

Pollution of Air and Water Test - 9

Result

Pollution of Air and Water Test - 9

Score

-

Rank

-

SHARING IS CARING

Question 1

Harms the skin and the lungs

Mixes with the blood and prevents it from carrying oxygen

Affects the heart and the liver

Raises the air temperature

Solution

Question 2

By burning coal in thermal power stations

By burning petrol in automobiles

By burning biomass in chullahs

By burning LPG for cooking

Solution

Question 3

Carbon dioxide

CFC's

The sun's ultraviolet rays

All of the above

Solution

Question 4

By sulphur dioxide pollution.

By carbon monoxide pollution.

By pesticide pollution.

By dust particles.

Solution

Question 5

Industrial effluents

Aerosols

Sewage pollutants

All of the above

Solution

Question 6

Carbon monoxide

Hydrocarbons

Suspended particulate matter

Oxides of nitrogen

Solution

Question 7

Automobiles

Windmills

Poultry farms

Dairy farms

Solution

Question 8

A combination of fire and water.

A combination of smoke and fog.

A combination of water and smoke.

A combination of air and water.

Solution

Question 9

It would be less than the present.

It would be the same as present.

It would be higher than the present.

It depends on the 0, content of air.

Solution

Question 10

Clean, colourless and odourless

Free from bacteria

Have excessive sodium, calcium and magnesium

Having dissolved oxygen and carbon dioxide

Solution

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