Why are the tops of clouds all poofy and fun, but the bottoms are totally flat and boring?
In: Physics
Because the cloud doesn’t really end at the flat part. As evaporated water rises, it lifts over a section where it becomes cold enough for the water to condense into clouds. Under that line, though, there’s a giant pocket of water vapor ready to rise and turn into clouds to make the cloud bigger.
[MinuteEarth has a good video that illustrates this.](https://youtu.be/QC2x_RRnk8E)
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