It is important because you could have bacteria all over your hands. If you go to eat something, or touch something, you would get it all over that object. Yuck! :)
The answer is solution because it cannot be separated or colliod homogenous mixture which has all the components in the same phase. emulsions or what ever idk your answer but that my best answer :3
Oxidation is when the overall charge (or oxidation number) increases. The only way to increase an oxidation number is to lose an electron, thereby making the negative charges less. The correct answer is C.
