Pollution of Air and Water Test

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Pollution of Air and Water Test - 15

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Weekly Quiz Competition

Question 1
1 / -0

Excessive release of $${CO}_{2}$$ into the atmosphere results in:

A
polar vortex

B
depletion of ozone

C
formation of smog

D
global warming

Solution

Carbon dioxide is very important for maintaining the climate which is suitable for our survival.
$$CO_2$$ has the property of trapping heat from the sun. So higher the level of carbon dioxide, the higher will be the heat trapped. This leads to the rise in the temperature of the earth, resulting in global warming.
Therefore, we can say excessive release of $$CO_2$$ into the atmosphere results in global warming.
Question 2
1 / -0

Taj Mahal is being slowly disfigured and discoloured. This is primarily due to:

A
water pollution.

B
global warming.

C
soil pollution.

D
acid rain.

Solution

Taj Mahal is slowly disfigured and decolored due to acid rain because the acid of water reacts with the calcium carbonate of marble.
Question 3
1 / -0

Identify the pollutant gases largely responsible for the discoloured and lustreless nature of the marble of the Taj Mahal.

A
$$CO_2$$ and $$NO_2$$

B
$$SO_2$$ and $$NO_2$$

C
$$O_3$$ and $$CO_2$$

D
$$SO_2$$ and $$O_3$$

Solution

$$\displaystyle SO_2$$ and $$\displaystyle NO_2$$ are the pollutant gases largely responsible for the discoloured and lusterless nature of the marble of the Taj Mahal. Usually $$oxides$$ of $$nitrogen$$ and $$sulphur \ $$cause acid rain which reacts with marble and cause it's dicoloration.
Option (B) is the correct answer.
Question 4
1 / -0

Among the gases (a) - (e), the gases that cause greenhouse effect are :
(a ) CO$$_2$$
(b ) H$$_2$$O
(c ) CFCs
(d ) O$$_2$$
(e ) O$$_3$$

A
$$(a), (b), (c)\ and\ (d)$$

B
$$(a)\ and\ (d)$$

C
$$(a), (c), (d)\ and\ (e)$$

D
$$(a), (b), (c)\ and\ (e)$$

Solution

Greenhouse gases cause the greenhouse effect on planets. The primary greenhouse gases in Earth's atmosphere are water vapor $$(H_2O)$$, carbon dioxide $$(CO_2)$$, methane $$(CH_4)$$, nitrous oxide $$(N_2O)$$, ozone $$(O_3)$$, and $$CFC's$$.

$$CO_2, O_3, H_2O$$ and $$CFCs$$ are greenhouse gases.

Hence, option $$D$$ is correct.
Question 5
1 / -0

Global warming is mainly due to the increase of:

A
methane and $$NO_2$$ in atmosphere

B
methane and $$CO_2$$ in atmosphere

C
methane and $$O_3$$ in atomsphere

D
methane and $$CO$$ in atmosphere

Solution

The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. The effect of this is global warming.
Global warming is due to the increase of greenhouse gases like methane and $$CO_2$$ in the atmosphere. Methane and carbon dioxide have a major contribution to global warming.

Hence, option $$B$$ is correct.
Question 6
1 / -0

Name the gas which has the highest percentage in air.

A
Nitrogen

B
Oxygen

C
Carbon dioxide

D
Helium

Solution

Air consists of $$78\%$$ nitrogen, $$21\%$$ oxygen, argon, and other inert gases to the extent of about $$1.0\%$$. In addition, carbon dioxide is another important constituent of the atmosphere which varies in amount from $$0.1\%$$ to $$0.3\%$$.
Hence answer is the option A.
Question 7
1 / -0

Governments have already taken action against air pollution by introducing ________.

A
wind energy

B
solar energy

C
renewable energy

D
all of the above

Solution

Governments have already taken action against air pollution by introducing green energy like wind energy, solar energy, and renewable energy to minimize the burning of fuels that cause heavy air pollutions.
Question 8
1 / -0

Gases like methane, nitrous oxide and water vapour also contribute towards greenhouse effect, they are also called ___________.

A
greenhouse gases

B
acidic gases

C
noble gases

D
None of these

Solution

Gases like methane, nitrous oxide, and water vapour also contribute to the greenhouse effect, they are also called greenhouse gases.
Greenhouse gases are gases that trap heat from the sun. Without these gases, heat would escape back into space and the earth would be colder than normal temperature. Because of how they warm our planet, these gases are referred to as greenhouse gases.
Question 9
1 / -0

__________ and __________ are the major components of the atmosphere.

A
Nitrogen and argon

B
Carbon dioxide and oxygen

C
Nitrogen and oxygen

D
Oxygen and carbon dioxide

Solution

In the atmosphere, nitrogen is 78%, oxygen is 21%, and other gases are 1% by volume. Thus nitrogen and oxygen gases are the major components of the atmosphere. Hence option C is correct.
Question 10
1 / -0

Which of the following is correct about the percentage composition of $$O_2$$ in air?

A
21%

B
52%

C
78%

D
12.5%

Solution

The air in our atmosphere is composed of molecules of different gases. The most common gases are nitrogen (78%), oxygen (about 21%), and argon (almost 1%).

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Re-Attempt Weekly Quiz Competition

Pollution of Air and Water Test - 15

Result

Pollution of Air and Water Test - 15

Score

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Rank

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SHARING IS CARING

Question 1

polar vortex

depletion of ozone

formation of smog

global warming

Solution

Question 2

water pollution.

global warming.

soil pollution.

acid rain.

Solution

Question 3

$$CO_2$$ and $$NO_2$$

$$SO_2$$ and $$NO_2$$

$$O_3$$ and $$CO_2$$

$$SO_2$$ and $$O_3$$

Solution

Question 4

$$(a), (b), (c)\ and\ (d)$$

$$(a)\ and\ (d)$$

$$(a), (c), (d)\ and\ (e)$$

$$(a), (b), (c)\ and\ (e)$$

Solution

Question 5

methane and $$NO_2$$ in atmosphere

methane and $$CO_2$$ in atmosphere

methane and $$O_3$$ in atomsphere

methane and $$CO$$ in atmosphere

Solution

Question 6

Nitrogen

Oxygen

Carbon dioxide

Helium

Solution

Question 7

wind energy

solar energy

renewable energy

all of the above

Solution

Question 8

greenhouse gases

acidic gases

noble gases

None of these

Solution

Question 9

Nitrogen and argon

Carbon dioxide and oxygen

Nitrogen and oxygen

Oxygen and carbon dioxide

Solution

Question 10

21%

52%

78%

12.5%

Solution

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