Answer:
You should keep track of your pulse to know if something is wrong with you heart.
Explanation:
I may be wrong but that is all the knowledge i can bestow upon you right now. My other butterflies need me. Have a blessed day!
Exercise and not to smoke or be around second hand smoke. But exercise is probably the more important thing you can do to protect your respiratory system.
I believe the answer is A) tone
Not necessarily! try looking it up , but i dont think so.
