1. 5N
2. Yes
3. Towards boy A (the one pulling with 10 N)
PTSD stands for Post-traumatic stress<span> disorder. </span>Some people may be more vulnerable to PTSD because they have limbic system, which floods the body with stress hormones. The limbic system is a brain structure responsible for <span>emotions, behaviors, motivation, long-term memory, and olfaction.</span>
Answer:
https://www.history.com/topics/native-american-history/native-american-cultures
Explanation:
go to this website