Pollution of Air and Water Test

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Pollution of Air and Water Test - 39

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Weekly Quiz Competition

Question 1
1 / -0

Increased level of greenhouse gases causes global warming which will result in:

A
Temperature may rise by the more then two degree Celsius

B
Melting of glaciers

C
both A and B

D
None of these

Solution

The earth's atmosphere traps the heat from the sun, preventing it from escaping into space is the greenhouse effect. This is mainly caused by deforestation. This results in an increase in the average temperature of the atmosphere due to which glaciers start melting and there is a rise in sea level.
Question 2
1 / -0

Which of the following gases is not a greenhouse gas?

A
Oxygen

B
Methane

C
Nitrous oxide

D
Water vapour

Solution

Carbon dioxide, methane, water vapour, nitrous oxide, $$CFCs$$ and ozone are greenhouse gases. Oxygen is not a greenhouse gas.
Question 3
1 / -0

What are characteristics of 'domestic' wastewater?

A
Grey color, musty odour

B
Blue color, odourless

C
Green color, musty odour

D
All of Above
Question 4
1 / -0

The most abundant greenhouse gas in the earth's atmosphere:

A
Carbon dioxide $$(CO_{2})$$

B
Nitrous oxide $$(N_{2}O)$$

C
Water vapor $$(H_{2}O)$$

D
Methane $$(CH_{4})$$
Question 5
1 / -0

Which one is not correct regarding greenhouse effect?

A
is due to high concentration of $$CO_2$$ in atmosphere

B
is influenced by gases such as $$CH_4, H_2O$$ vapor, and chlorofluorocarbons

C
would result in the warming up of the earth

D
would result in lowering the level of oceans due to high evaporation.

Solution

The trapping of the sun's radiation which is reflected from the earth's surface by atmospheric gases and heats up the earth's surface is called the greenhouse effect.
The gases which trap the radiation are called greenhouse gases. Carbon dioxide $$CO_2$$ has major contribution to greenhouse effect. Other greenhouse gases are methane ($$CH_4$$), water vapor ($$H_2O$$), chlorofluorocarbons ($$CFC's$$), nitrous oxide, ozone, etc.
These gases in the atmosphere trap solar radiation and warm up the Earth's surface results in global warming.
Global warming results in an increase in the sea level of oceans due to an increase in the temperature of water in the sea.
Here, A, B, and C are correct regarding the greenhouse effect.
Hence, Option $$D$$ is the correct answer.
Question 6
1 / -0

Which of the following is a set of green house gases?

A
$$CH_4, O_3, N_2, SO_2$$

B
$$O_3,N_2,CO_2,NO_2$$

C
$$O_3,NO_2,SO_2,Cl_2$$

D
$$CO_2,CH_4,N_2O,O_3$$

Solution

$$CO_2 (carbon\ dioxide) ,CH_4 (methane ),N_2O (nitrous\ oxide),O_3 (ozone)$$ is the correct set of green house gases.
Question 7
1 / -0

Water must be purified before it is suitable for use in the home. Which processes are used to remove solid impurities and to kill bacteria?

A
To remove solid impurities - chlorination, to kill bacteria - chlorination

B
To remove solid impurities - chlorination, to kill bacteria - filtration

C
To remove solid impurities - filtration, to kill bacteria - chlorination

D
To remove solid impurities - filtration, to kill bacteria - filtration

Solution

Filtration is a process in which solid impurities are removed from impure solutions.
Chlorination is a process in which bacterias are killed for the purification of water.
Question 8
1 / -0

Which of the following is not directly responsible for causing water pollution?

A
Automobile exhaust

B
Garbage

C
Untreated sewage,

D

Non-biodegradable polythene bags

Solution
Question 9
1 / -0

Taj Mahal is threatened due to effect of :

A
chlorine

B
sulphur dioxide

C
oxygen

D
hydrogen

Solution

White marble of Taj Mahal is turning yellowish in colour due to acid rain. The gas which is poisonous and threat to Taj Mahal, in particular, is Sulphur dioxide which is also a cause of acid rain.
Question 10
1 / -0

Fluorosis, a bone disease is caused by the presence of :

A
Pesticides in water

B
Fluorides in water

C
Carbon monoxide in air

D
Sulphur dioxide in air

Solution

Fluorosis - It is a cripling disease resulted from the deposition of fluorides in the hard and soft tissues of the body. It is a public health problem caused by excess intake of fluoride through drinking water.

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Re-Attempt Weekly Quiz Competition

Pollution of Air and Water Test - 39

Result

Pollution of Air and Water Test - 39

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Question 1

Temperature may rise by the more then two degree Celsius

Melting of glaciers

both A and B

None of these

Solution

Question 2

Oxygen

Methane

Nitrous oxide

Water vapour

Solution

Question 3

Grey color, musty odour

Blue color, odourless

Green color, musty odour

All of Above

Question 4

Carbon dioxide $$(CO_{2})$$

Nitrous oxide $$(N_{2}O)$$

Water vapor $$(H_{2}O)$$

Methane $$(CH_{4})$$

Question 5

is due to high concentration of $$CO_2$$ in atmosphere

is influenced by gases such as $$CH_4, H_2O$$ vapor, and chlorofluorocarbons

would result in the warming up of the earth

would result in lowering the level of oceans due to high evaporation.

Solution

Question 6

$$CH_4, O_3, N_2, SO_2$$

$$O_3,N_2,CO_2,NO_2$$

$$O_3,NO_2,SO_2,Cl_2$$

$$CO_2,CH_4,N_2O,O_3$$

Solution

Question 7

To remove solid impurities - chlorination, to kill bacteria - chlorination

To remove solid impurities - chlorination, to kill bacteria - filtration

To remove solid impurities - filtration, to kill bacteria - chlorination

To remove solid impurities - filtration, to kill bacteria - filtration

Solution

Question 8

Automobile exhaust

Garbage

Untreated sewage,

Non-biodegradable polythene bags

Solution

Question 9

chlorine

sulphur dioxide

oxygen

hydrogen

Solution

Question 10

Pesticides in water

Fluorides in water

Carbon monoxide in air

Sulphur dioxide in air

Solution

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