Question

Write down any three things by which you feel the presence of air.
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Answer 1

Answer:

We can feel the presence of air due to changes in various physical characters of air

1 . Temperature difference: when hot air or cold air moves or hits our skin

2. Speed of air: when the velocity of wind is greater or lesser.

3. Presence of water vapour: when the percentage of water is more or very less ( by sweating)

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