Compression is dominant at what plate boundaries

The continental divide a divides the united states into east and west b. divides the united states into north and south c. divides the flow of river systems in the united states into east and west d. is a series of rivers and mountains that separates canada from the united states select the best answer from the choices provided.

The layers of earth are based on what two sets of characteristics?

Look at the photo i can’t do geography