Why are the tops of clouds all poofy and fun, but the bottoms are totally flat and boring?
In: Physics
As you go up the pressure decreases evenly.
As pressure drops, temperature drops evenly.
As tenperature drops, there comes a point (dewpoint) where it releases the water in it in the form of steam (cloid.
When the sun heats the ground, it in turn heats the air so it rises.
So there is a thing called cloudbase, a level under which the air keeps the water as invisible vapour, and above that as cloud. If air goes up clouds form, as air goes down it dissipates. That is why there is a line under which there is no cloud.
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