The unit for measuring electric power is the
a. ampere.
b. ohm.
c. volt.
d. watt.

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.

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Elements on the periodic table are ordered according to their