What is the difference between move and copy?

Move - it is like "cut" as in you move it and you don't have the document you moved in the folder you moved it from.

Copy - You can copy and paste all you want and make many, many copies of the document and not lose it. What I'm trying to say is that move is like, the exact opposite of copy.

*If you move, it remains to be one document. If you copy, it doesn't remain to be one document, you can make as many as you want, if you have enough memory.

Btw, sorry if my explaination was too long and if you can't understand it well. I'm not really good at it, I'm still practising.