State two experiences that made you think that air exerts pressure (other than those given in the text)....
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20
Answer:
- balloon - it is clearly seen that air pushes the boundaries of a balloon and thus we are able to inflate it.
- in an aeroplane - when we are about to take off or land , we usually feel pain in our ears due to change in pressure.
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10
Answer:
In a balloon the air pushes the surface which inflates it.....
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