Clouds are water liquid, not vapour, why it don't fall down?

Title says all,
why clouds are up? have the air more density than water?

Thanks!
 
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Same reason that smoke rises despite soot being heavier than air. :wink:
 

LURCH

Science Advisor
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Although clouds are made of water droplets and ice chrystals, these droplets are very small. Many clouds form as a result of updrafts. These updrafts are more than strong enough to keep such tiny droplets aloft.
 

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