ANSWER ASAP How many state parks are in PA

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.

What is the amount of organic matter in all living organisms in a habitat called?

Which year held a congressional election and a presidential election