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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Air pollution is due to the
पर्याय
cutting of green plants
gases like carbon monoxide, sulphur dioxide, etc.
smoke given out by factories
all of the above
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उत्तर
all of the above
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संबंधित प्रश्न
What was the ancient belief regarding the nature of matter ?
Give two uses of the following component present in air:
nitrogen
Give two uses of the following component present in air:
water vapour
What is meant by the term ‘atmosphere’? State the role played by the atmosphere for the survival of mankind.
Why is it said that-
Air is a homogeneous mixture of various gases.
Draw a neat labelled diagram for the following experiment.
To prove that oxygen is non-combustible, but supports combustion.
Mention two uses of air.
What should be done if the clothes of a person catch fire accidentally? Why?
List five activities that are possible due to the presence of air.
Make sentences using the given set of words.
Air, wind, motion, called
