Question

explain why a ballon slowly defeat​

Answer 1

Answer:

Helium is less dense than air, but rubber is more dense. So a balloon with little helium will still have an average density higher than air, and thus the force of graviy will be stronger than the bouyancy, and the balloon will fall.

Answer 2

Answer:

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Helium is less dense than air, but rubber is more dense. So a balloon with little helium will still have an average density higher than air, and thus the force of graviy will be stronger than the bouyancy, and the balloon will fall.