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

NCERT Class 6 Science Air Around Us[Composition of Air]Dust and Smoke

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

Question 2

NCERT Class 6 Science Air Around Us[Composition of Air]Carbon Dioxide

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

Question 3

NCERT Class 6 Science Air Around Us[Composition of Air]Water Vapor

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

Question 4

NCERT Class 6 Science Air Around Us[Composition of Air]Carbon Dioxide

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

Question 5

NCERT Class 6 Science Air Around Us[Composition of Air]Dust and Smoke

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

Question 6

NCERT Class 6 Science Air Around Us[Composition of Air]Oxygen

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

Question 7

NCERT Class 6 Science Air Around Us[Composition of Air]Oxygen

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