CBSE Class 6 Science Air Around Us Quiz 1

1. Major part of the air is constituted by

A nitrogen B oxygen C carbon dioxide D inert gases

2. Which of the following gas helps in burning? ,

A Nitrogen B Oxygen C Carbon dioxide D Carbon monoxide

3. Which of the following gas we use in breathing?

A Carbon dioxide B Nitrogen C Oxygen D None of these

4. Wind is

A air around us B rising hot air C air in motion D none of these

5. Air is present in

A atmosphere B soil C water of ponds, lakes and seas D everywhere

6. Air is

A a mixture B a pure substance C an element D anything, that depends on the place where it is found

7. Envelope of air that surrounds the earth is known as

A biosphere B atmosphere C environment D ecosystem

8. Which is not a property of air?

A It occupies space. (b) It is transparent,

9. The ratio of nitrogen to oxygen in the air is

A 1:4 B 4:1 C 3:1 D 1:2

10. The main constituent of the air is.

A nitrogen B oxygen C carbon dioxide D hydrogen