Inflate a balloon fully with air and then slowly open the mouth of the balloon. Which of the following statements can be concluded from this activity?

Air flows from outside to inside the balloon when the mouth is opened.

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The air in the balloon is at higher pressure than the outside.

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The air in the balloon is at lower pressure than outside.

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Air flows from inside the balloon to outside when the mouth is opened.

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Solution

The correct options are
B The air in the balloon is at higher pressure than the outside.
D Air flows from inside the balloon to outside when the mouth is opened.
When you inflate a balloon with air and then slowly open its mouth, the air starts flowing outside. The air inside the balloon is at a higher pressure than outside. As a result of this, air flows from inside the balloon to outside.

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