Answer:
The answer is equilibrium and disequilibrium.
Explanation:
Accoring to Jean Piaget's theories, equilibrium and disequilibrium refers to a situation in which the relationship between old and new knowledge is balanced. This enables a person to create new mental links, and was described by Piaget as the foundation of cognitive development.
Menstruation im pretty sure or maybe puberty but probs the first one
4,Because Alcohol can mess up your body just like smoking can. So, it's best not to smoke or drink unless you want to ruin your body.