Answer: your answer is A. The quality of air and water at places where people live,work, and go to school.
Explanation: environment is a where people live together.
The sympathetic system is our “flight or flight” defense to help during stressful situations. It prepares the body to either fight the threat or to flee. The parasympathetic system is what brings the bodily functions back to homeostasis after the “fight or flight” had been activated and the threat is over.
