A Helium-Filled Balloon Released in the Atmosphere Will Rise Until

question 50

Multiple Choice

A helium-filled balloon released in the atmosphere will rise until

• A)the pressure inside the balloon equals atmospheric pressure.
• B)atmospheric pressure on the bottom and top of the balloon are equal.
• C)the balloon and surrounding air have equal densities.
• D)all of the above
• E)none of the above

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Neurotransmitter Imbalance

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