Pollution of Air and Water Test

Result

Pollution of Air and Water Test - 24

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Weekly Quiz Competition

Question 1
1 / -0

Among the following, which will not help to reduce air pollution?

A
Burn household rubbish in incinerators

B
Use catalytic converters on motor vehicles

C
Fix electric precipitators to factory chimneys

D
Ban smoking in public places such as in offices

Solution

Some measures indeed help to reduce the stress on the environment like a use of catalytic converters in vehicles and ESPs in chimneys reduce the air pollutants going in an atmosphere. Smoking is injurious to the health of smoker and passive smokers too who have to inhale the smoke in their lungs causing diseases. Incinerators produce a lot of ash and residue which is not suitable for burning so it increases the air pollution.
Question 2
1 / -0

Cause:
Global warming
Effect:
Ice at the North and South poles may melt causing sea levels to rise and floods to occur.
Which of the following can prevent the effect from happening?

A
Planting trees

B
Use of unleaded petrol

C
Use of leaded petrol

D
Both (A) & (B)

Solution

Global warming is occurring because of an increase in global temperature. The greenhouse gases are increasing in the air because of the leaded fuel which is used in vehicles giving toxic gases or greenhouse gases and it can be prevented by using unleaded petrol.
This leads to the melting of ice at the North and South poles.
Question 3
1 / -0

The harmful and unwanted substances which degrade the quality of water are called as ________.

A
water pollutants

B
soil pollutants

C
air pollutants

D
none of the above

Solution

Any external substance which changes the natural qualities of water is known as a water pollutant. These can be chemical or biological. These pollutants harm the natural quality of water causing water pollution.
So, the correct option is $$A$$
Question 4
1 / -0

Global warming causes:
1) an increase in the sea level.
2) the melting of ice at mountain peaks.
3) a decrease in food production by plants.

A
I only

B
I and II only

C
II and III only

D
I, II and III

Solution

The global warming effect causes the rise in the global temperature resulting in the melting of polar ice caps and rises in sea level. This rise in temperature changes the rain cycle and decreases crop production.
Question 5
1 / -0

The release of carbon dioxide into the air causes:

A
acid rain

B
eutrophication

C
global warming

D
respiratory problems

Solution

The trapping of solar radiation from the atmosphere and not reflecting it back causes an increase in the temperature of the earth's surface, This phenomenon is called global warming and the gases which trap such radiations are called greenhouse gases. Such as carbon dioxide, methane, etc.
So the release of carbon dioxide into the air causes global warming.
Hence, option $$C$$ (global warming) is correct.
Question 6
1 / -0

Modes of controlling pollution in large cities include(s):

A
less use of insecticides.

B
proper disposal of organic wastes, sewage and industrial effluents.

C
shifting of factories out of the residential area.

D
all the above

Solution

In large cities, environmental health can be maintained by decreased use of insecticides as it affects air quality. All types of household and industrial waste should be handled and disposed of out of the city area and factories inside the residential areas cause great harm to health by polluting the air and water with its wastes, so they must be shifted outside the residential area.
Hence, the correct option is $$\text{D}$$.
Question 7
1 / -0

The gases released from vehicle exhausts are:
I. carbon monoxide
II. carbon dioxide
III. oxides of nitrogen

A
I and II only

B
I and III only

C
II and III only

D
I, II and III

Solution

Vehicular exhaust consist of oxides of carbon, mainly carbon dioxide and carbon monoxide, and various oxides of nitrogen resulting from the burning of fuel.
Question 8
1 / -0

What is the main source of water pollution in India?

A
Discharge of untreated sewage

B
Bathing

C
Discharge of industrial waste

D
Both A and C

Solution

Sources of water pollution to rivers in India are done mainly by the industries and factories pouring untreated chemical waste in the rivers which are highly toxic in nature and another source is sewage waste from domestic households and municipalities goes directly to the river bodies causing major water pollution as it is highly pathogenic in nature.Bathing is not the major source as it forms a minor portion of the major sewage waste.
Question 9
1 / -0

Choose the option which justifies the given statement:-
Air is considered a mixture, not a compound.

A
It is possible to separate air into its constituent gases by physical methods like fractional distillation.

B
Air does not have a fixed formula like compounds.

C
Air shows properties same as the constituent gases present in it.

D
All of the above

Solution

Air is considered as mixture of many gases because air doesnot have fixed formula like compounds. Also it doesnot show property same as the constituent gases present in it. And it's component can be separated into its constituent gases by physical methods like fractional distillation. So all of the above statement conclude that air is mixture.
Question 10
1 / -0

Which of the following gases do not form part of the atmosphere?

A
Nitrogen

B
Chlorine

C
Carbon idoxide

D
Oxygen

E
Ozone

Solution

Nitrogen$$(N_2)$$, Carbon dioxide$$(CO_2)$$, Oxygen$$(O_2)$$, Ozone$$(O_3)$$ are part of the atmosphere but chlorine$$(Cl_2)$$ is not a part of atmosphere.
So answer is B.

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Re-Attempt Weekly Quiz Competition

Pollution of Air and Water Test - 24

Result

Pollution of Air and Water Test - 24

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SHARING IS CARING

Question 1

Burn household rubbish in incinerators

Use catalytic converters on motor vehicles

Fix electric precipitators to factory chimneys

Ban smoking in public places such as in offices

Solution

Question 2

Planting trees

Use of unleaded petrol

Use of leaded petrol

Both (A) & (B)

Solution

Question 3

water pollutants

soil pollutants

air pollutants

none of the above

Solution

Question 4

I only

I and II only

II and III only

I, II and III

Solution

Question 5

acid rain

eutrophication

global warming

respiratory problems

Solution

Question 6

less use of insecticides.

proper disposal of organic wastes, sewage and industrial effluents.

shifting of factories out of the residential area.

all the above

Solution

Question 7

I and II only

I and III only

II and III only

I, II and III

Solution

Question 8

Discharge of untreated sewage

Bathing

Discharge of industrial waste

Both A and C

Solution

Question 9

It is possible to separate air into its constituent gases by physical methods like fractional distillation.

Air does not have a fixed formula like compounds.

Air shows properties same as the constituent gases present in it.

All of the above

Solution

Question 10

Nitrogen

Chlorine

Carbon idoxide

Oxygen

Ozone

Solution

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