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
Medicine advertising
Explanation:
Well the doctors are obviously experts in the area of stuff so if a doctor tells you to take a medicine you definitely should.
Answer:
D is the answer to this question
Answer:
Acting out, change in mood going at a faster pace than normal, eating habits change
Explanation:
