United states

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Volcanic Belt

'fall line' in the Northeast

Clear-Cutting

Removal of all forests when harvesting timber

Headwaters

Source

Foreclosure

The seizure of property from borrowers who are unable to repay their loans

Aqueduct

a channel or pipeline for moving large quantities of water a channel or pipeline for carrying a large quantity of flowing water

Suburb

a community lying on the fringes of a metropolitan area

divide

a physical feature that determines the direction of river flow

hot spot

a place on the ocean floor through which magma vents to create an underwater volcano that may grow into an island

Hurricane

a powerful tropical storm that forms over warm ocean waters

Rust Belt/Manufacturing Belt

a region in the northeastern and midwestern United States characterized by its heavy industrial concentration 'fall line' in the Northeast

Tributary

a smaller river or stream that feeds into a larger river

Megalopolis

a very large, heavily populated city or urban complex. Densely populated urban areas like the megalopolis between Boston and Washington, D.C. attract residents with economic opportunity.

Petroleum Reserves

amount of petroleum know to be in a well at a given price

The Clean Water Act

has helped restore water quality throughout the country.

Smog

haze caused by the interaction of ultraviolet solar radiation with chemical fumes from pollution sources

Eutrophication

process by which a body of water becomes too rich in dissolved nutrients, leading to plant growth that depletes oxygen in the water

Sunbelt

states in the south and southwest that have a warm climate and tend to be politically conservative Population is increasing in Sunbelt states as manufacturing has declined in the North and Great Lakes region.

Columbia Plateau

the dry area between the Pacific Ranges and the Rocky Mountains

Fall line

the eastern United States boundary where the elevated Piedmont area drops to the lower Atlantic Coastal Plain

Great Plains

vast grassland between the mississippi river and the rocky mountains

Wheat belt

wheat-growing region that included the Dakotas, Nebraska and Kansas


Ensembles d'études connexes

taxes, retirement, and other insurance concepts

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