3. what are some way parent can their children develop good self esteem

Over-praising kids does more harm than good.
Let your child take healthy risks.
Let kids make their own choices.
Let them help around the house.

Complimenting them daily and having them say a compliment back will allow them to be kind and raise their self esteem.

Why the planet stays in orbit is because of inertia (object stays in motion until a force changes it’s motion) also the atmosphere and gravity!