Plants because they go through photosynthesis
The ability to read, understand, and use healthcare information
Reflecting means like your perspective of a situation make sure you finish the question next time
You don't. Astral projection is pseudo science, but if you believe those who claim that it is a real thing, then it involves things like meditation and what not and then you can leave your body and float around and see the world and meet other souls and things like that. It's not supported by any scientific evidence.
Your excretory system includes your kidneys. And your kidneys is what makes urine. Intoxication weakens your kidneys making them fail at regulating bodily fluid. And you will go pee a lot more.