NCERT Class 6 Science-Air Around Us[Composition of Air] [NCERT Based General Studies (GS)]: Questions 1 - 7 of 10

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Question 1

Question MCQ▾

Sources of dust particles present in the air are:

Choices

Choice (4)Response

a.

Traffic on the road

b.

Construction activities and agricultural practices

AND

Blowing of wind

c.

Dusting at home, earth moving operations

d.

All b., a. and c. are correct

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Question 2

Question MCQ▾

The gas which helps to keep the earth warm is:

Choices

Choice (4)Response

a.

Oxygen

b.

Nitrogen

c.

Carbon-dioxide

d.

None of the above

Edit

Question 3

Question MCQ▾

The amount of water vapour present in the air is known as:

Choices

Choice (4)Response

a.

Transpiration

b.

Evaporation

c.

Humidity

d.

Moisture

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Question 4

Question MCQ▾

Gas used in fire extinguishers is:

Choices

Choice (4)Response

a.

Oxygen

b.

Carbon-dioxide

c.

Nitrogen

d.

Question does not provide sufficient data or is vague

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Question 5

Question MCQ▾

Why the traffic policeman wears mask?

Choices

Choice (4)Response

a.

To protect themselves from UV rays

b.

To protect themselves from smoke

c.

To protect themselves from sun rays

d.

None of the above

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Question 6

Question MCQ▾

Supporter of combustion is:

Choices

Choice (4)Response

a.

Carbon-dioxide

b.

Oxygen

c.

None of the above

d.

Question does not provide sufficient data or is vague

Edit

Question 7

Question MCQ▾

The gas which is used in respiration to break down the food to give energy is:

Choices

Choice (4)Response

a.

Oxygen

b.

Nitrogen

c.

Carbon-dioxide

d.

Question does not provide sufficient data or is vague

Edit