Rubbing your eyes with dirty hands could allow some sort of foreign object to get into your eye and irritate it. Also, you might introduce germs or the like, and this might result in an eye infection.
We are usually cautioned about rubbing our eyes as its something to generally avoid. But rubbing your eyes with dirty hands is something that warrants special attention so it can always be avoided because of the risks.
if you rubbed it where there was ink, you would get a black mark.
the # 5 would be scratched
Much the same as would happen at any other time, but possibly with more mess.
coke will be dirty
it would get dirty
They would get burned.
The air would be polluted and everyone will fall sick
an earthquake happens
Because if you don't you will be very dirty and smelly
The 7 would wear away the 5.
our earth would be stinky dirty there would be dead animals everywhere
If you rubbed a piece of fluorite against a piece of feldspar, neither mineral would really change. Both minerals are relatively hard and have different chemical compositions, so they would not interact in a way that would result in a noticeable reaction.