system
Given the following post, respond as if you're commenting on Reddit:
human
Does the sky rotate along with the earth?

As the earth rotates on its' axis, so do the land and all oceans that are in it. How about the sky? Does that also rotate? If yes, then why? Because it's not physically attached to anything on the earth. 

Also, if the sky does not rotate, then, let's say we are in USA and we stay in sky suspended at the same spot for a few hours (may be in a helicopter) then wouldn't we be in another country when we come down since the land below us has already moved?
gpt
The sky rotates. You can say it's not 'physically attached' to anything on the earth, but obviously it touches the surface and surface objects everywhere. As the earth moves, it creates friction against the lower portions of the atmosphere, which create friction against higher parts of the atmosphere.

Consider that the equator is rotating at roughly 1000mph, if the atmosphere did not move with it, you'd have roughly 1000mph winds because you and everything on the ground would be plowing through it at that rate.