All the air is removed from a sealed metal can. after the air is removed, the can looks as if it were crushed. why?

I remember learning about this in chemistry last semester.

The can looks like it was crushed because the outside pressure (aka atmospheric pressure) is pressing against the can that has no air in it, which is also called a vacuum in chemistry terms. The main thing to focus on is the atmospheric pressure that is pressing against the can and in the process, crushes it. Hopefully this makes sense. Good luck

i wish i could with all of them i can barley see the first one so here's the answer to the first one b

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.