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24 Cards in this Set

  • Front
  • Back

Shift

To change the place, position, or direction of

Alter

to change partly

Tributary

a smaller river or stream that feeds into a larger river

Headwaters

the source of a stream or river

divide

a high point or ridge that determines the direction rivers flow

fall line

the natural boundary between an upland and a lowland, as a piedmont and a coastal plain:

hurricane

a large, powerful windstorm that forms over warm ocean waters

fossil fuels

a resource formed in the earth By plant and animal remains

conflict

a competition or struggle

Underground railroad

a network of safe houses in the United States that helps thousands of enslaved people escape to freedom

dry farming

a farming method used in dry regions in which crops are grown that rely only on the natural precipitation

Manufacturing belt

a concentrated region of manufacturing industries in the northeastern and midwestern United States

immigrate

to change residence from a country to begin living permanently in another country

sunbelt

a mild climate region in the southern and southwestern portions of the United States

megalopolis

a large population concentration made up of several large and many smaller cities, such as the area between Boston and Washington, D.C

Jazz

musical form that developed in the United States in the early 1900s, blending African rhythms and European harmonies

Postindustrial

economy that emphasizes services and technology rather than industry and manufacturing

foreclosure

When a homeowner can't afford to pay her mortgage

clear-cutting

the removal of all trees in a stand of timber

Acid rain

precipitation carrying large amounts of dissolved acids, which kills wildlife and damages buildings, forests, and crops

smog

haze caused by the interaction of ultraviolet solar radiation with chemical fumes from automobile exhausts and other pollution sources

contribute

to give or add to

eutrophication

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

Aqueducts

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