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Standard VII
Physics
Air Exerts Pressure
Question

When a balloon is filled with air, which of the following holds true?

A
air pressure inside the balloon increases
B
insufficient information
C
air pressure inside the balloon decreases
D
air pressure inside the balloon remains the same
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Solution
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Correct option is A. air pressure inside the balloon increases
When a balloon is filled with air, air presses against the walls of the balloon giving it its shape. When a balloon is filled with air, air pressure inside the balloon increases.

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