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प्रश्न
_______ can be seen moving in a beam of sunlight in a dark room.
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उत्तर
Dust particles can be seen moving in a beam of sunlight in a dark room.
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संबंधित प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Dust particles help in the ________ of water vapour in air.
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
Name and briefly explain four ways by which pollution of air is caused by humans.
Give reason:
When water is heated, we see bubbles rising up.
What are the components of air?
Which of the following is true about oxygen?
How do astronauts breathe when they go beyond the earth’s atmosphere?
Composition of the component of air ______ from place to place.
Write a note on nitrogen.
Carbon dioxide gas is ______ in nature.
