Ms. Elizabeth pushes a trash can and it moves across the cafeteria floor. Draw a free body diagram below. Label each force: force of gravity, friction, normal force, applied force, spring force, tension
force. Not all used here.

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.