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- 1. Multiple Choice
The components of air which is taken by Plants to prepare the food?
(a) O2
(b) N2
(c) CO2
(d) None of these
A
B
C
D
- 2. Multiple Choice
Which of the following is NOT present in air?
(a) Oxygen
(b) Nitrogen
(c) Helium
(d) Iron
A
B
C
D
- 3. Multiple Choice
Which gas is produced by plants during photosynthesis?
(a) Nitrogen
(b) Carbon Dioxide
(c) Hydrogen
(d) Oxygen
A
B
C
D
- 4. Multiple Choice
What are the users of Oxygen?
(a) Living being
(b) Combustion of fuel
(c) Rusting of iron
(d) All the above
A
B
C
D
- 5. Multiple Choice
The presence of water vapor is Air is important for
(a) Water Cycle
(b) Ozone layer
(c) Combustion
(d) None of the above
A
B
C
D
- 6. Multiple Choice
What is not true of Air?
(a) It is odorless and colorless
(b) It occupier space and has weight
(c) it can be compressed and stored
(d) None of these
A
B
C
D
- 7. Multiple Choice
Statement A: Nitrogen is used in protein synthesis
Statement B: Proteins are required by living organisms to grown and repair their body parts
(a) Statement A is correct only
(b) Statement B is correct only
(c) Both the statement is correct
(d) Both the statement are incorrect
A
B
C
D
- 8. Multiple Choice
Which of the following gas helps in burning? ,
(a) Nitrogen
(b) Oxygen
(c) Carbon dioxide
(d) Carbon monoxide
A
B
C
D
- 9. Multiple Choice
Wind is
(a) air around us
(b) rising hot air
(c) air in motion
(d) none of these
A
B
C
D
- 10. Multiple Choice
Air is present in
(a) atmosphere
(b) soil
(c) water of ponds, lakes and seas
(d) everywhere
A
B
C
D
- 11. Multiple Choice
Envelope of air that surrounds the earth is known as
(a) biosphere
(b) atmosphere
(c) environment
(d) ecosystem
A
B
C
D
- 12. Multiple Choice
Which property of air is shown in the image
Bottle is soluble in water
Air is dissolved in water
No air is present in water
None of the above
- 13. Multiple Choice
Warm air is.................as compared to cold air.
Heavier
Lighter
no change
none of the above
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