Question

How can we prove that air exerts pressure ?
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Answer 1

Explanation:

As you blow into the funnel, the air moves faster and lowers the air pressure underneath the ball. Because the air pressure is higher above the ball than below it, the ball is pushed down into the funnel—no matter how hard you blow or which direction you point the funnel.

Answer 2

Explanation:

Take a long straw and insert in the mouth. Wrap a lump of clay around the straw to form a seal.

blow blowhard to the straw- then stand back. your blowing increase air pressure inside the sealed bottle.eg: balloons

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