Introduction
the united states and canada are rich in engrgy and mineral resources. see the map of resources of the united states and canada) the
states and canada.) the united states has about 25 percent of the world,s coal reserves and is a major coal exporter. coal is mined in the
appalachians, rockies, and interior plains. in canada, coal is mined in nova scotia and in the western provinces of saskatchewan, alberta,
states set up a federal system of goverment. under the u.s. federal systems power is divided between local, state, and national governm
underlying all livels of goverment is the