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प्रश्न
What is not true about air?
पर्याय
It makes the windmill rotate.
It helps in the movements of aeroplanes.
Birds can fly due to presence of air.
It has no role in water cycle.
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उत्तर
It has no role in water cycle.
Explanation:
During the process of evaporation, the vapours of water are risen up by air to form clouds.
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संबंधित प्रश्न
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Give reason:
Aquatic animals and plants are able to survive in the matter.
Fill in the blank
The reddish-brown powder on the surface of iron nails exposed to air and moisture is called _____.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.
Carbon dioxide with water changes
What is the composition of air?
Why does a lump of cotton wool shrink in water?
What was the old name of nitrogen?
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
