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Due to the high pressure in it ,when we pull the balloon with a pen,due to the high pressure of it inside the balloon,so the balloon collapses.
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Can you please explain it in detail
As we know that air exerts pressure and occupies place< as we blow air into the balloon it expans as it is made of rubber and it strectches if we blow, as soon as we remove air from it the pressure at once comes into contract and therefore it gets collpsed...
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