Scientists theorize that oil and natural gas formed from the remains of microscopic manne organisms called A) mussels
B) seashells
C) plankton
D) fossil fuels

It would be D. Fossils fuels.
People born remains of those organisms to form fossil fuels for energy.

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.

Orbit is represented by the blank space