Why does air not fall to the ground due to gravity? Also, why do lighter than air gases like helium rise?

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Why does air not fall to the ground due to gravity? Also, why do lighter than air gases like helium rise?

In: Physics

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Anonymous 0 Comments

Air is affected by gravity. It does fall to the ground. The heavier air falls underneath the lighter gases, like helium, and forces those gases to rise. If gases were not held to the planet by gravity then we would have lost it all to space by now.

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