Pollution of Air and Water Test

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Pollution of Air and Water Test - 35

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Weekly Quiz Competition

Question 1
1 / -0

What is potable water?

A
Contaminated water

B
Drinking water

C
Water with high mineral content

D
Water with low mineral content

Solution

Drinking water, also known as potable water or improved drinking water, is water safe enough for drinking and food preparation.
Question 2
1 / -0

Among the following, the one which is not a 'greenhouse gas', is:

A
Carbon dioxide

B
Sulphur dioxide

C
Methane

D
Nitrogen

Solution

Among the given gases, carbon dioxide, sulphur dioxide and methane have the ability to trap thermal radiation, but nitrogen does not. That's why it is not a greenhouse gas.
Question 3
1 / -0

Which of the following is not a greenhouse gas?

A
Carbon dioxide

B
Sulphur dioxide

C
Methane

D
Nitrogen

Solution

A greenhouse gas is a gas that produces heat in the atmosphere as it increases. It also gets stuck in the environment and can not leave the internal layer of the Earth’s atmosphere. These gases introduce pollution because they contaminate the environment.
Examples of greenhouse gases: Carbon dioxides, Methane, Chlorofluorocarbon, sulphur dioxide.
Whereas oxygen, nitrogen, and argon are not examples of greenhouse gases.
Question 4
1 / -0

Which one of the following sets contribute to the global warming?

A
$$SO_2 ,\, SO_3,\,O_2$$

B
$$N_2 ,\,C_2H_6 ,\, SO_3$$

C
$$CO_2 ,\,CH_4 ,\,CFCs$$

D
$$H_2 ,\,NO_2 ,\, SO_2$$

Solution

Any change in the balance between the quantity of energy absorbed compared to the amount emitted, affects climate. The "greenhouse effect" is concerned with the infrared radiation given off by the earth. Part of this radiation is absorbed by the atmosphere, rather than being lost to space. The gases in the atmosphere that absorb infrared light primarily are water $$(H_2)$$, carbon dioxide $$(CO_2)$$, ozone $$(O_3)$$, nitrous oxide $$(NO_2)$$, methane $$(CH_4)$$ and $$CFCs$$. These gases act as a sort of insulating blanket for the earth, in the same way they would act to lessen heat loss from a greenhouse, hence the name 'greenhouse effect'.
Question 5
1 / -0

Which one of the following is not a green-house gas?

A
$$CO_2$$

B
$$N_2O$$

C
Water vapor

D
$$N_2$$

Solution

$$\displaystyle N_2$$ is not a green house gases. $$\displaystyle CH_4,$$ $$CFCs$$, $$\displaystyle CO_2$$, $$O_3$$ and $$\displaystyle N_2O$$ are green house gases.
Question 6
1 / -0

Which gas has the highest partial pressure in atmosphere?

A
$$CO_2$$

B
$$H_2O$$

C
$$O_2$$

D
$$N_2$$

Solution

Air contains $$78\ \%$$ Nitrogen. So, it contributes more number of moles to partial pressure than any other gas in the atmosphere. So, it has the highest partial pressure.
Hence, Option $$D$$ is correct.
Question 7
1 / -0

High concentrations of carbon monoxide $$(CO)$$:

A
reduces capacity of blood transport

B
reduces capacity of oxygen transportation through blood in body

C
increases capacity of oxygen transportation through blood in body

D
does not have any effect on body

Solution

Carbon monoxide is produced from the incomplete combustion of fuel (like petrol, diesel, etc.). It is a poisonous gas that reduces the oxygen-carrying capacity of the blood in the body.
Option $$B$$ is correct.
Question 8
1 / -0

Which chemical substance is a greenhouse gas that scientists link to global climate change?

A
Nitrogen oxides

B
Lead

C
Pesticides

D
DDT

E
Nitrates

Solution

Nitrous oxide $$\displaystyle N_2O$$ is a greenhouse gas scientists link to global climate change. Following are the sources of nitrous oxide.
(1) Fertilizer use
(2) Fossil fuel combustion
(3) Biomass burning
Question 9
1 / -0

A greenhouse gas that absorbs energy and maintains earth's temperature is:

A
carbon dioxide

B
oxygen

C
nitrogen

D
argon

Solution

A greenhouse gas that absorbs energy and maintains the earth's temperature is carbon dioxide $$(CO_2)$$. Other greenhouse gases are methane $$(CH_4)$$, nitrous oxide $$(N_2O)$$, and chloro-fluoro-carbon$$(CFC)$$.
Question 10
1 / -0

Exhaust motor vehicle is the main source of:

A
Carbon dioxide

B
Carbon monoxide

C
Sulfur dioxide

D
Nitrogen oxide

Solution

Exhaust gas is emitted as a result of the combustion of fuels such as natural gas, petrol, biodiesel blends, diesel fuels, fuel oils, or coal. The largest part of most combustion gas is nitrogen. water vapor (except with pure-carbon fuels), and carbon dioxide (except for fuels without carbon); these are not toxic or noxious. A relatively small part of combustion gas is undesirable noxious or toxic substances, such as carbon monoxide (CO) from incomplete combustion.

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Re-Attempt Weekly Quiz Competition

Pollution of Air and Water Test - 35

Result

Pollution of Air and Water Test - 35

Score

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Rank

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SHARING IS CARING

Question 1

Contaminated water

Drinking water

Water with high mineral content

Water with low mineral content

Solution

Question 2

Carbon dioxide

Sulphur dioxide

Methane

Nitrogen

Solution

Question 3

Carbon dioxide

Sulphur dioxide

Methane

Nitrogen

Solution

Question 4

$$SO_2 ,\, SO_3,\,O_2$$

$$N_2 ,\,C_2H_6 ,\, SO_3$$

$$CO_2 ,\,CH_4 ,\,CFCs$$

$$H_2 ,\,NO_2 ,\, SO_2$$

Solution

Question 5

$$CO_2$$

$$N_2O$$

Water vapor

$$N_2$$

Solution

Question 6

$$CO_2$$

$$H_2O$$

$$O_2$$

$$N_2$$

Solution

Question 7

reduces capacity of blood transport

reduces capacity of oxygen transportation through blood in body

increases capacity of oxygen transportation through blood in body

does not have any effect on body

Solution

Question 8

Nitrogen oxides

Lead

Pesticides

DDT

Nitrates

Solution

Question 9

carbon dioxide

oxygen

nitrogen

argon

Solution

Question 10

Carbon dioxide

Carbon monoxide

Sulfur dioxide

Nitrogen oxide

Solution

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