Epinephrine is the answer you're looking for. A more common and more used terms would be adrenaline.
The answer would be false
Answer:
Piercing your ears with a needle that has been washed thoroughly with soap and water
False. When presenting a presentation you need to be loud enough so that all can here. (This is just an example.)
True
If you want more explanation I'm more than happy to and I hope this helps:)