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???
ANSWER : steams and fragrant flowers
Explanation:
<span>Several stressful events occurring at once have no effect on a family.
-False
</span>
Depends on if you are dieting to gain or lose weight gain as in gain muscle
