Pollution of Air and Water Test

Result

Pollution of Air and Water Test - 10

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following pollutants is NOT present in the vehicular exhaust emissions?

A
Lead

B
Ammonia

C
Carbon monoxide

D
Particulate matter

Solution

Ammonia is not present in vehicular exhaust emissions.
Question 2
1 / -0

What is the main cause of pollution of water in India?

A
Discharge of untreated sewage

B
Bathing

C
Discharge of industrial waste

D
Both (A) and (C)

Solution

The main cause of water pollution in India is the discharge of untreated sewage and industrial waste.
Question 3
1 / -0

In which part of atmosphere is ozone layer present?

A
Stratosphere

B
Troposphere

C
Mesosphere

D
Thermosphere

Solution

Ozone layer is present in the stratosphere.
Question 4
1 / -0

What is the main cause of sulphur dioxide emissions?

A
Agricultural farms

B
Petroleum refineries

C
Thermal Power plants

D
Water resources

Solution

The main cause of sulphur dioxide emissions is the combustion of fuels like coal in power plants.
Question 5
1 / -0

Which of these steps when adopted will contribute towards better waste management?

A
Reduce the amount of waste formed

B
Reuse the waste

C
Recycle the waste

D
All of the above

Solution

Reducing the amount of waste formed, reusing the waste and recycling the waste contribute towards better waste management.
Question 6
1 / -0

Which of the following, will NOT help in reducing air pollution?

A
Burn household rubbish in incinerators.

B
Use catalytic converters in motor vehicles.

C
Fix electric precipitators to factory chimneys.

D
Ban smoking in public places such as in cinema theatres.

Solution

Smoking in public places affects the health of an individual and not the environment. Air pollution can be reduced by (i) burning household rubbish in incinerators, (ii) using catalytic converters in motor vehicles and (iii) fixing electric precipitators to factory chimneys.
Question 7
1 / -0

Which of the following is due to global warming?

(i) An increase in the water level in the sea
(ii) The melting of snow on mountain peaks
(iii) A decrease in food production by plants

A
Only (i) and (ii)

B
Only (ii) and (iii)

C
Only (i) and (iii)

D
(i), (ii) and (iii)

Solution

Due to global warming, there is (i) an increase in the water level in the sea, (ii) glaciers on mountain peaks melt due to increase of earth's temperature by 0.5° C and (iii) there is a decrease in food production by plants.
Question 8
1 / -0

Which of these is the bio-indicator of air pollution?

A
Algae

B
Ferns

C
Mushrooms

D
Lichens

Solution

The bio-indicator of air pollution is lichens. Lichens are a good indicator of the level of pollution as some lichens are very sensitive and cannot grow where air pollution is above a certain level.
Question 9
1 / -0

What does the term 'conserving the 'environment' mean?

A
Not allowing man and animal from using natural resources

B
Not lowering the quality of the environment

C
Changing natural resources from their original state

D
Preserving nature that has been destroyed

Solution

By the term 'conserving the environment' we mean that the quality of the environment should not be lowered.
Question 10
1 / -0

How can pollution from the burning of fossil fuels be reduced?

(i) By using an incinerator.
(ii) By using renewable sources of energy.
(iii) By fixing catalytic converters in vehicles.

A
Only (i) and (ii)

B
Only (ii) and (iii)

C
Only (i) and (iii)

D
(i), (ii) and (iii)

Solution

Pollution from the burning of fossil fuels can be reduced by all the three given methods.
Question 11
1 / -0

What is caused, if carbon dioxide is released into the air?

A
Acid rain

B
Eutrophication

C
Global warming

D
Respiratory problems

Solution

Global warming is caused when carbon dioxide is released into the air.
Question 12
1 / -0

How is sewage water purified for recycling?

A
By the action of fish.

B
By the action of microorganisms.

C
By the action of fuels.

D
By the action of non-biodegradable chemicals.

Solution

Sewage water is purified for recycling by the action of non-biodegradable chemicals.
Question 13
1 / -0

What is the trapping of heat radiations by earth's atmosphere known as?

A
Global warming

B
Marble cancer

C
Greenhouse effect

D
Ozone hole

Solution

Trapping of heat radiations by earth's atmosphere is known as greenhouse effect.
Question 14
1 / -0

What are the effects of discharging excess heat from electrical power stations into rivers and lakes?

(i) The biological oxygen demand value of the water decreases
(ii) Instant death of certain organism
(iii) The population of algae increases
(iv) The concentration of dissolved oxygen increases

A
Only (i) and (ii)

B
Only (ii) and (iii)

C
Only (i), (ii) and (iii)

D
Only (i),(ii) and (iv)

Solution

Electrical power stations use water to make steam to run the turbines and generate electricity. The used steam or superheated water which is of no use is released directly into water bodies. As aquatic animals are cold blooded, they cannot withstand excess heat and die. Aquatic plants carry out photosynthesis and release oxygen into the water. They too die and cause a decrease of oxygen in water. Points (iii) and (iv) are caused due to eutropication.
Question 15
1 / -0

Which of the following is NOT an air pollutant?

A
N₂

B
N₂O

C
NO

D
CO

Solution

N₂ is not an air pollutant.

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Re-Attempt Weekly Quiz Competition

Pollution of Air and Water Test - 10

Result

Pollution of Air and Water Test - 10

Score

-

Rank

-

SHARING IS CARING

Question 1

Lead

Ammonia

Carbon monoxide

Particulate matter

Solution

Question 2

Discharge of untreated sewage

Bathing

Discharge of industrial waste

Both (A) and (C)

Solution

Question 3

Stratosphere

Troposphere

Mesosphere

Thermosphere

Solution

Question 4

Agricultural farms

Petroleum refineries

Thermal Power plants

Water resources

Solution

Question 5

Reduce the amount of waste formed

Reuse the waste

Recycle the waste

All of the above

Solution

Question 6

Burn household rubbish in incinerators.

Use catalytic converters in motor vehicles.

Fix electric precipitators to factory chimneys.

Ban smoking in public places such as in cinema theatres.

Solution

Question 7

Only (i) and (ii)

Only (ii) and (iii)

Only (i) and (iii)

(i), (ii) and (iii)

Solution

Question 8

Algae

Ferns

Mushrooms

Lichens

Solution

Question 9

Not allowing man and animal from using natural resources

Not lowering the quality of the environment

Changing natural resources from their original state

Preserving nature that has been destroyed

Solution

Question 10

Only (i) and (ii)

Only (ii) and (iii)

Only (i) and (iii)

(i), (ii) and (iii)

Solution

Question 11

Acid rain

Eutrophication

Global warming

Respiratory problems

Solution

Question 12

By the action of fish.

By the action of microorganisms.

By the action of fuels.

By the action of non-biodegradable chemicals.

Solution

N₂

N₂O