suggest two experience that made you think that air exerts pressure
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Rooftop flying of a hut in storm and when a bus travels rapidly then some litter fly towards its tyres.. ... THIS SHOWS THAT THE AIR INSIDE EXERTS PRESSURE ON THE WALL OF THE BALLOON. ... THIS IS BECAUSE ATMOSPHERIC PRESSURE AT HIGHER ALTITUDES IS LESS WHEREAS THE PACKET IS FILLED WITH GAS ...
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1.Bottle filled with water and make holes at the bottom of the bottle.
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