I suppose the answer would be C. Kepler's three laws talk about planetary orbit.
Answer:
B. the air pressure decreases
Explanation:
As elevation increases, there is less overlying atmospheric pressure mass, so that atmospheric pressure decreases with increasing elevaton.
Answer:
snowball rolling down a hill lol
Your body is pushing down on a chair because it is being attracted by gravity, the reason that your body is not moving down because there is a normal force acting on your body; together the net force of weight (m*g) and normal force is equal to zero
It increases the tension in you're muscles
