I've seen this several times on Tumblr, but this is my answer. I just sort of thought that the lead from the Penulisan on the paper gets stuck on the eraser. I dunno.
That depends on what anda mean... If anda are referring to 'erasing' with a rubber/eraser, then, no, not destroyed... The carbon simply gets added to the lithosphere... The first law of Thermodynamics is just that: 'Matter cannot be created, nor destroyed - only transferred atau transformed'... Henceforth, the carbon from pencil lead is simply transferred to the rubber, atau flicked into the lithosphere, where eventually it will become part of the carbon cycle once again.
If anda are referring to on a computer, then anda don't understand anything about thermodynamics.
If anda mean like erasing history on your computer and on your phone, I heard from my guidance teacher that it doesn't actually get erased. It gets sent to some place. I can't remember.