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US has bigger and wider dispersed population and smaller area. Canada's population is condensed along the southern border.

Arid : dry halfHumid : Moist half these are divided by the transition zone along 100W longtitude.

Arid : grassland vegetationHumid : forest vegetation

Europeans drove Native Americans westward from Atlantic & Gulf coasts.After 50 years of war only 4% of US territory is Native Americans' for use. And these are in the form of reservations.

1870s. Within 50 years America became the leading industry.

Core : American manufacturing beltCorners : St. Louis, Milwaukee, Boston, Baltimore

Persistent drift of people and livelihoods towards South and West (SUNBELT)

Newly urbanized suburban ring, now coequal to the central city that spawned it.Suburban downtowns anchor the outer ring of the multi centered metropolis. The Urban realms generalization views today's metropolis as consisting of several self-sufficient sectors, each organized around its own downtown

Primary - the extractive sector, (mining, agriculture)
Secondary - Manufacturing
Tertiary - Services sector
Quaternary - the information sector

Appalachia, Northern Great Plains, Midcontinent

Gulf Coast, Midcontinent, Appalachia

Planned techno-industrial complex that innovates, promotes, and manufactures the products of postindustrial informational economy.

Both are rural and possesses difficult environments. Both were historically bypassed by more dynamic and fertile inland areas.

Fastest growing metropolis : LAS VEGAS VALLEYtriggered by Las Vegas' recreation industry and induction of high-tech and professional firms.

Mexico and Central America - from the US - border to the northern edge of South America & all of the Carribean islands to the east.