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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Air consists of
विकल्प
only oxygen
only nitrogen
only carbon dioxide
all of these
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उत्तर
all of these
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संबंधित प्रश्न
What was the ancient belief regarding the nature of matter ?
What is wind?
State what do you understand by the term ‘air’. Explain its importance to mankind.
A mixture has a variable composition. Give three other reasons why air is considered a mixture and not a compound.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
What will happen if the amount of water vapour in the air increases.
State the meaning of the term Air
Air has variable composition and hence there is ______ oxygen at lower altitudes than at higher altitudes.
Name a device which uses wind energy to generate electricity.
Cool and soothing wind: Breeze.
uproot trees wind: ______.
