The four factors that can be defined as essential parts of one’s overall health are social, mental and emotional, and physical. The answer to your question is C. I hope this is the answer that you are looking for and it comes to your help.
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???
You could be dehydrated or be taking medication with side effects
