Answer: Exhaled air consists of 78 percent nitrogen, 16 percent oxygen, 4 percent carbon dioxide and potentially thousands of other compounds.
Explanation: Does this help???
I think it would be A because your family doctor can prescribe them too
Answer:
1) diet; 2) rest; 3) exercise; 4) posture; and 5) avoiding the use of alcohol, drugs and tobacco.
Explanation:
When self-evaluating where you are with these five factors, choose your weakest area and start with making goals for improvement.
