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10 questions
Which gas do fire extinguishers contain?
Helium
Carbon-Dioxide
Hydrogen
Nitrogen
Oxygen
Which gas to plants breathe?
Carbon- Dioxide
Hydrogen
Oxygen
Nitrogen
When a person goes on a higher altitude the air gets
Why do animals living in deep burrows emerge out of the soil when it rains?
What are the uses of a windmill?
run flour factories
generate electricity
create water
draw water from tube mills
Apart from Nitrogen, which is the other major gas present in the air.
Nitrogen
Hydrogen
Water Vapour
Oxygen
Apart from the different gases what does air contain?
Smoke
Water
Dust
Fire
Water dissolves in the air. (True/False)
If air is in motion what do we call it?
Define atmosphere.
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