To charge something or use experiments
Answer:
A)friction
Explanation:
The friction of air resistance slows down the acceleration due to gravity for real-world objects.
Air resistance is a form of friction found in atmosphere.
Frictional force is a force that opposes the motion of a body. It acts in the opposite direction of motion. Friction slows down real-world objects moving through the air.
Without friction, motion will not be possible.
As·tron·o·my- <span>the branch of science that deals with celestial objects, space, and the physical universe as a whole. </span>That's the definition hope it is what you need and that it helps:)
Energy. Energy cannot be created or destroyed
