How could you prove that
rock layers in one area match rock layers
found in another area?

Name the non metal condut electricity

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

How do we measure or think of speed in the united states?