Hello
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The answer is A. Nitrous oxide.(laughing gas)
Hope this helps
The answer is true, you can use both
I'm pretty sure that would be false and would also go against some of the points of what your talking about. Not to mention it's rude to do so. I'm pretty sure anyways.
Hope that helps.
Stress is a mental impact that you put on your body by being to preoccupied or worried about things occurring or coming up in your life. For example there is a lot of stress in high school students because of things like peer pressure and needing to fit in as well as having to always do well in school. Stress can be a dangerous thing as it can lead to something called the fight or flight response which under pressure and stress can cause the body to do strange/ abnormal things which can lead to harming the persons body
