system
Given the following post, respond as if you're commenting on Reddit:
human
Why does rain fall as individual droplets and not sheets or continuous lines?
gpt
Long streams and sheets simply are not stable and would break up into droplets, due to surface tension. Spheres are the least energy form for free floating water and that's what it goes to. 

Droplets form in the atmosphere when rising air cools to the dew point and starts forming droplets or ice crystals which start forming clouds. When droplets grow heavy enough, they fall and we get rain.

Incidentally, the tear drop shapes used for taps and weather symbols and stuff is pretty much only seen when a drop hangs off something and drops off. Once falling the drop starts to pull toward spherical again.