find ~ -mtime +10 o atime +10. what does this command mean?

Issue the command find ~ -size +10000c. Explain this instruction?

Come up with a find instruction to locate all empty files (files whose size is 0). 28.) What instruction did you come up with? You can also use the empty option but use one with size. You may shut down your Linux VM from the desktop by choosing System->Shut Down.