The answer to question 1 is A.
The answer to question 2 is C.
If an atom is unstable it can become stable by the gain or loss of electrons.
<span>B. wearing goggles when working with chemicals. Hope this helps :)</span>
the body has levels of organisms that built on each other cells make up tissues, tissues make up organs, and organs make up organs system the function of an organs system
depends on the the integrated activity of it organs for instance digestive system organs corporate to process food
