Ineed !

based on your observations from the can crush lab, why would a helium balloon that rises into the atmosphere eventually burst?
atmospheric pressure outside the balloon increases as the balloon rises
atmospheric pressure outside the balloon decreases as the balloon rises
helium molecules inside the balloon decrease as the balloon rises
helium molecules inside the balloon increase as the balloon rises

Option B

Explanation:

With increase in atmospheric altitude , the density of the atmosphere increases which means the number of air particles per unit area reduces. Due to this change in density of atmosphere the pressure exerted by atmosphere also reduces.

When an helium balloon rises, the pressure inside the balloon is high while the pressure outside the balloon in low due to which the latex of the balloon tries to expand and hence the balloon burst eventually

Thus, option B is correct

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