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- 1. Multiple Choice
Atmosphere has how many layers
6
5
8
4
- 2. Multiple Choice
We live in the
Mesosphere
Stratosphere
Exosphere
Troposphere
- 3. Multiple Choice
_____ protest us from UV rays of the sun
Ozone layer
Troposphere
Mesosphere
Ionosphere
- 4. Multiple Choice
Argon is a
odourless
carbon dioxide
colourless
oxygen
- 5. Multiple Choice
Argon is used to make
light bulb
chair
desk
tubelight
- 6. Multiple Choice
Nitrogen has
77%
78%
74%
76%
- 7. Multiple Choice
Oxygen has
22%
24%
23%
21%
- 8. Multiple Choice
Nitrogen
does support burning
does not support burning
- 9. Multiple Choice
Water is denser than
water
air
fire
all of the above
- 10. Multiple Choice
Constantly inhaling polluted air may affect the_____and_____to many respiratory problems.
stomach
lungs
leads
brain issues
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