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प्रश्न
What is not true about air?
विकल्प
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
What are the two ways in which nitrogen fixation occurs?
Tick (√) the most appropriate answer.
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Tick (√) the most appropriate answer.
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Write fully balanced equation for the following :
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What are fuels?
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
Name the main component of air.
List uses of oxygen.
______ is the percentage of nitrogen in air.
