Answer:
all of the following are true except b, you can reduce genetic risk
Answer:
it is C. Oxygen
Explanation:
You need more Oxygen when you are doing Aerobic exercises.
Yes, there is a variety of things you can do to wear down the enamel. A few of the biggest things are: Drinking Coffee or soda, eating acidic foods and not brushing your teeth. Sadly you are not able to grow back your enamel after if it fully gone so it's best to protect your enamel as much as possible.
It is important for us to keep our body in equilibrium because that is what keeps our body not only balanced but in a lack of better words, stabilized as well.