Why are minerals important for good health? When can they be toxic?

Question

Science homework lol. I tried google, got nothing.

Answer 1

Try wiki instead

http://en.wikipedia.org/wiki/Dietary_mineral

and the most important thing about any element in the body is balance, too little bad, too much bad . . .
Even water, too little kills you, too much kills you
Balance, balance, balance

Answer 2

mineral booo.... excersize yes