When a helium balloon rises too high then _______.

it shrinks

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it bursts

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its size remains same

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its size keeps on varying

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Solution

The correct option is B it bursts
Pressure decreases as altitude increases. When a helium balloon rises up, the pressure inside the balloon becomes more than the pressure outside. Hence, the balloon first expands and then finally bursts.

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When a helium balloon rises too high then _______.

The correct option is B it burstsPressure decreases as altitude increases. When a helium balloon rises up, the pressure inside the balloon becomes more than the pressure outside. Hence, the balloon first expands and then finally bursts.

The correct option is B it bursts
Pressure decreases as altitude increases. When a helium balloon rises up, the pressure inside the balloon becomes more than the pressure outside. Hence, the balloon first expands and then finally bursts.