Concentration refers to the number of particles of a substance per unit volume, in facile words, the amount of particles in a substance.
Answer:
This is a lot to think about and take in but the answer is 1/2*qr*rs or (-5,-28)
Explanation: Please brainliest?
You times all of them together and you would get the answer
It can attacks a cell because germs spread fast throught the body and that is why you need medication to help you when you are sick so it does not get worse so if you have a virus you need medication so it does not harm you even more.
