Can someone give me an idea for this assignment?

What happens in a global convection cell

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.