Geography Ch 7 vocabulary 3 of 3

Terms	Definitions
smelt	to melt ores in order to remove impurities
coke	coal from which most of the gases have been removed by heating. It burns with intesnse heat and little smoke
Rust Belt	the states of the Midwest and Northeast where there has been a decrease in production of such items as steel and automobiles
Sun Belt	the states of the South and Southwest with a warm, sunny climate
slash-and-burn agriculture	the practrice of clearing fields for agriculture by cutting down and burning all vegetation
Tennessee Valley Authority (TVA)	a federal corporation organized in 1933 to provide cheap electric power, flood control and irrigation by building dams and reservoirs along the Tennessee River
legumes	any of a large family of plants that bear nodules on the roots containing nitrogen-fixing bacteria. (peas,beans,peanuts)
New Deal	a series of laws passed and agencies created in an attempt to stimulate the economy, create jobs, and pull the nation out of the depression
limestone	hard rock formed by the deposition of dead organisms and mainly consisting of calcium carbonate
stalactite	a mass of calcite suspended from the roof of a limestone cavern
stalagmite	an accumulation of calcite that has grown up from the floor of a limestone cavern
slag	impure mineral waste removed in the ore-making process
reclaim	to restore to usefulness (ex. making a floor out an old shed is using "reclaimed wood")
gasohol	a fule made of ethyl alcohol and unleaded gasoline. The alcohol is made form sugars and starches found in plants, mostly corn
current	a river flowing within a larger body of water
upwelling	the movement of deeper, cooler, nutrient-rich water to the ocean surface
coral	stony skeletal deposits produced by polyps
Humboldt (Peru) Current	a cold ocean current flowing northward from Antarctica along the western coast of South America. Creates an area of upwelling that is one of the most important fishign areas in the world
disruptive	interrupting or interfering with something
Gulf Stream	a warm ocean current flowing northward along the eastern coast of North America before turning toward Europe, and becoming the North Atlantic Drift
blight	any disease that destroys plants
glacier	a large mass of land ice that is or has been in motion
continental glacier	a glacier formed at high latitudes that covers a large area of land. Also known as an ice sheet
alpine glacier	a relatively small glacier formed at high elevations in the mountains
terminal moraine	the final deposit of glacial debris marking the farthest advance of a glacier
calving	the process whereby large pieces of ice break off when a glacier enters water
glacial scouring	scraping action due to the weight of glaciers, leaving bare bedrock.
isostasy	the ability of the planet to seek a state of equilibrium, to equalize or balance itself
alluvial fan	a fan-shaped stream deposit extending out from the bases of mountain ranges. Most commonly found in arid and semi-arid regions
cirque	a large mountain hollow created by a glacier. May be considered the headwaters of a glacier
hanging valley	a glacial tributary valley that is not as deeply eroded as the main glacial valley and thus remains higher when the glacier retreats
crevasse	a deep crack in a glacier due to movement
plastic	having the ability to change shape without breaking
fiord	a long, narrow arm of the sea which formed as the result of drowning of a glaciated valley
draft	the depth of water that a ship needs in order to float
Tower of London	a fortress of several buildings in London historically used as both a palance and a prison