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- 1. Multiple Choice
What are the properties of air?
Air occupies space.
It is transparent.
Air is present everywhere around us.
all of the above
- 2. Multiple Choice
Air around us exerts ________.
Pressure.
Wind.
Heating.
Low.
- 3. Multiple Choice
Clothes dry faster when there is ______ water vapour in air
less water vapour
high water vapour
all of the above
none of the above
- 4. Multiple Choice
The process of absorbing carbon dioxide from air and preparing the food by plants is called ______________
transpiration
Photosynthesis
breathing of plants
none of the above
- 5. Multiple Choice
Organism living in soil breathe through ______________.
carbon dioxide in soil
dissolved oxygen in soil
Air present in soil
there is no air in soil
- 6. Multiple Choice
which of the following genrates electricity through air
water mill
wind mill
thread mill
air mill
- 7. Multiple Choice
. Removal of water from plant bodies in the form of vapours is called _____
photosynthesis
water cycle
transpiration
none of the above
- 8. Multiple Choice
The layer of gases around the earth is called as _______________.
exosphere
mesosphere
thermosphere
none of the above
- 9. Multiple Choice
state true or false Nitrogen supports burning of a candle
true
flase
- 10. Multiple Choice
To release some of the air from the bottle shown in the given diagram, we should:
tilt the bottle
push the bottle
both of them are correct
- 11. Multiple Choice
state true or false Sound can travel only in air. …………….
true
flase
- 12. Multiple Choice
……………….. is a device which measures the air pressure.
Thermometer
Barometer
Anemometer
Ammeter
- 13. Multiple Choice
Air occupies space and has:
colour
smell
mass
none of these
- 14. Multiple Choice
Arrange the jumbled words DILLMWIN
wind air
water mill
wind mill
none of these
- 15. Multiple Choice
Arrange the jumbled words YNOGXE ……………….
nitrogen
oxygen
carbon
all of these
- 16. Multiple Choice
Arrange the jumbled words TUDS ………………..
dust
air
water
- 17. Multiple Choice
Arrange the jumbled words MESKO ………………
mask
water
smoke
corona
- 18. Multiple Choice
state true or false Air is a mixture of gases. ……………….
true
false
- 19. Multiple Choice
state true or false air exerts pressure
true
false
- 20. Multiple Choice
name some layers of atmosphere
mesosphere
thermosphere
exosphere
all of these
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