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???
The brain gets used to you taking the drug. Some drugs will affect your neurotransmitters, or messages that get sent to your brain that regulates how we think or feel. You will eventually become dependent on the drug so if you stop you might feel sick or go through "withdrawal". Which people dont want to go through so they will continue to take the drug.
You should call 911 if a person exhibits which of the following:
-Drinking more than one kind of alcohol at a time
-inability to wake up and
-clammy or bluish skin.
These signs are not normal that can be harmful to the drinker. There might be some side-effects or allergies that caused the abnormal behavior or skin discoloration.
<span>
</span>