Even though this is science please help! How does friction make sand paper smoother?

Question

anonymous · Answer

it gradually wares down the rough sauce of the sand paper, much like water or weather wares down the rough surfaces of a rock

anonymous · Answer

*surface, not sauce lol...

anonymous · Answer

|dw:1380485191779:dw|

anonymous · Answer

take a piece of wood, and rub sand paper on it... it will wear down the wood as well as the paper, only at a slower rate...

anonymous · Answer

I really don't know how it can be improved...

anonymous · Answer

because "the experimental error were the friction making the sand paper smoother. This experimental error can be improved by..." i don't know how this can be improved

anonymous · Answer

well im sorry I've done all that I can, im a history geek not a science nerd... it'd be best if you just put your question in the science section

anonymous · Answer

Okay, but thanks anyways.

anonymous · Answer

your welcome, goodluck