Harassment, exploiting people, any form of physical contact (hitting, shoving, kicking, etc.), mean text, threats and talking about people behind their back is a contribution to bullying. To stop someone from bullying, the victim can tell an adult. Standing up for yourself is common, but usually the victim gets in trouble as well.
I mean id assume birth rate
why would the population in an area increase if a person dies or moves out it would only decrease
so id be birth rate