Explain with proper example and
activity that air exerts pressure.
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Yes, air exerts pressure.
Explanation: Example in which air pressure can be observed: Take a glass and fill only 1/3 of it with water. Cover the mouth of the glass with an index card. Now hold the card in place and invert the glass over a sink and remove your hand from the card. ... The air outside exerts upward pressure on the index card.This air pressure is more than the weight of the water in the glass.
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