Please help me, I have to finish this assignment to get my grade up.

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

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.

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of