There are no appropriate units for power on the list you provided
Answer:
The force holding you down is gravity.
Explanation:
Gravity is a force between two objects with mass. It pulls things together. You have mass, and the Earth has mass, so gravity tries to pull you and the Earth together. The gravitational force is much bigger for more massive objects.
Yah isnt that obvious? Gasses mix everywhere in all proportions.
Displacement will be 15 too because
It falls from 0 till 15 meters
2 oxygen atoms are used to bond with sulfer