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प्रश्न
The layer of air around the earth is known as ______.
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उत्तर
The layer of air around the earth is known as atmosphere.
संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
Atmospheric nitrogen is directly absorbed by the plants to form plant proteins.
What do you observe when a beam of light is allowed to enter in a closed dark room through a small hole.
Give two uses of the following component present in air:
nitrogen
How is air useful to agriculture?
How is air useful to scooters and cars.?
Tick (√) the correct alternative from the choice given for the following statement.
Fuels which do not leave any residue on burning are
Tick (√) the correct alternative from the choice given for the following statement.
Which of the following is not a greenhouse gas?
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
Draw a neat labelled diagram for the following experiment.
To prepare oxygen in the laboratory from hydrogen peroxide and a catalyst.
Explain the following observations very briefly
A firki does not rotate in a closed area.
