Pollution of Air and Water Test

Result

Pollution of Air and Water Test - 26

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Weekly Quiz Competition

Question 1
1 / -0

Which component of the cooked food should not be disposed off into the drain?

A
Dry vegetables

B
Oil/ghee

C
Supernatent liquid

D
None of the above

Solution

Putting oil down the sink could lead to the build-up of a huge 'fat burg'. 'Fat burg' is the build-up of fat which can damage sewers and cause flooding.
Question 2
1 / -0

Which of the following gases cause the harmful greenhouse effect?

A
Hydrogen

B
Oxygen

C
Carbon dioxide

D
Nitrogen

Solution

Gases which cause greenhouse effect by trapping heat from solar radiation are:
1. Water vapour $$(H_2O)$$
2. Carbon dioxide $$(CO_2)$$
3. Methane $$(CH_4)$$
4. Nitrous oxide $$(N_2O)$$
5. Chlorofluorocarbons $$(CFCs)$$

Hydrogen, oxygen and nitrogen gases do not cause greenhouse effect.
Question 3
1 / -0

Select the correct option among the following.

A
Cooking oil and fats should be thrown down the drain.

B
Chemicals like paints, solvents, insecticides, motor oil, medicines may kill microbes that help purify water.

C
Used tea leaves, solid food remains, soft toys, cotton, sanitary towels etc. should not be thrown in the dustbin.

D
None of the above
Question 4
1 / -0

Which of the following is not a water pollutant?

A
Metal nitrates

B
Sewage

C
Oxygen

D
Human excreta

Solution

Oxygen is a constituent of water ($$H_2O$$). Others-metal nitrates, sewage, human excrete are organic wastes and inorganic waste that pollutes water bodies which makes it difficult for water animals to live underwater, whereas oxygen is helpful for the underwater organisms.
Question 5
1 / -0

What is the major constituent of air?

A
Hydrogen

B
Oxygen

C
Nitrogen

D
Water vapour

Solution

The major constituent of air is nitrogen. Air consists of 78% nitrogen, 21% oxygen and 1% of other gases, dust, impurities, water vapour.
Question 6
1 / -0

Which of the following is not a green house gas?

A
Carbon dioxide

B
Water vapour

C
Oxygen

D
Methane

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 are carbon dioxides, methane, CFC, sulphur dioxide.
Whereas oxygen, nitrogen, and argon are not examples of greenhouse gases.
Question 7
1 / -0

Carbon dioxide constitutes nearly ___ % of the atmosphere.

A
45

B
78

C
21

D
0.03

Solution

Carbon dioxide constitutes nearly 0.03% of the atmosphere.
Question 8
1 / -0

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

A
$$CO_{2}$$

B
$$H_{2} O$$

C
$$N_{2}$$

D
$$O_{3}$$

Solution

The primary greenhouse gases in Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone and chlorofluorocarbons.
Question 9
1 / -0

Which of the following is not a constituent of the atmosphere?

A
Oxygen

B
Nitrogen

C
Carbon dioxide

D
Manganese dioxide

Solution

Manganese dioxide is not a constituent of the atmosphere. Rest all other gases mentioned in the options form an important part of the atmosphere.
Question 10
1 / -0

Carbon dioxide, argon, methane, ozone and water vapour are also present in air in:

A
very small quantities

B
very large quantities

C
equal quantities

D
None of these

Solution

Carbon dioxide, argon, methane, ozone and water vapour are also present in air as very small quantities. Nitrogen is a major component.

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Re-Attempt Weekly Quiz Competition

Pollution of Air and Water Test - 26

Result

Pollution of Air and Water Test - 26

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SHARING IS CARING

Question 1

Dry vegetables

Oil/ghee

Supernatent liquid

None of the above

Solution

Question 2

Hydrogen

Oxygen

Carbon dioxide

Nitrogen

Solution

Question 3

Cooking oil and fats should be thrown down the drain.

Chemicals like paints, solvents, insecticides, motor oil, medicines may kill microbes that help purify water.

Used tea leaves, solid food remains, soft toys, cotton, sanitary towels etc. should not be thrown in the dustbin.

None of the above

Question 4

Metal nitrates

Sewage

Oxygen

Human excreta

Solution

Question 5

Hydrogen

Oxygen

Nitrogen

Water vapour

Solution

Question 6

Carbon dioxide

Water vapour

Oxygen

Methane

Solution

Question 7

45

78

21

0.03

Solution

Question 8

$$CO_{2}$$

$$H_{2} O$$

$$N_{2}$$

$$O_{3}$$

Solution

Question 9

Oxygen

Nitrogen

Carbon dioxide

Manganese dioxide

Solution

Question 10

very small quantities

very large quantities

equal quantities

None of these

Solution

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