5 notecards = 2 pages (4 cards per page)
a region in which several large cities and surrounding areas grow together.
the region that contains the 12 states of the north-central United States
a region that covers about one-fourth of the land area of the United States and contains more than one-third of its population.
a functional area including a city and its surrounding suburbs and exurbs, linded economically.
North American region, consisting of 13 states, that stretches from the Great Plains to the Pacific Ocean and includes Alaska to the north and Hawaii in the Pacific