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45 Cards in this Set

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a low lying area located at the mouth of a river formed by deposits of alluvial soil
delta
slightly saline
brackish
a narrow strip of land connecting two larger land masses
isthmus
a section of a waterway closed off with gates in which vessels are raised or lowered by adding or moving water
lock
an engineering term for an artificially created channel for passageway
cut
quantity of water measured at a specific point along the river
discharge
a region of soil deposited by a river
alluvial deposition
a high tide that rises at the mouth of a river during new and full moons rushing upriver at speeds in excess of 40 mph
tidal bore
entirely surrounded by land
landlocked
mouth of a river that is affected by seatides
estuary
a large or high waterfall
cataract
a religion and culture native to India
Hindu
a small channel that has broken off from a larger channel of a river
distributary
fine grain topsoil carried by wind or water
loess
the indiscriminate cutting or overharvesting of trees for lumber or to clear the land for agriculture or development
deforestation
a fortress of several buildings in London historically used as both a palace and a prison
Tower of London
to melt ores in order to remove impurities
smelt
coal from which most of the gases have been removed by heating
coke
the states of Midwest and Northeast where there has been a decrease in production of such items as steel and automobiles
Rust Belt
the states of the South and Southwest with the warm, sunny climate
Sun Belt
the practice of clearing fields for agriculture by cutting down and burning all vegetation
slash-and-burn agriculture
federal corporation organized in 1933 to provide cheap electric power, flood control, and irrigation by building dams and reservoirs along the Tennessee River
Tennessee Valley Authority
impure mineral wastes removed in the ore making process
slag
to restore to usefulness
reclaim
fuel made of ethyl alcohol and unleaded gasoline
gasohol
a river flowing within a larger body of water
current
the movement of deeper, cooler, nutrient-rich water to the ocean surface
upwelling
stony skeletal deposits produced by polyps
coral
a cold, ocean current flowing northward from Antartica along the western coast of South America
Humboldt (Peru) Current
interrupting or interfering with something
disruptive
a warm ocean current flowing northward along the Eastern coast of N. America before turning toward Europe and becoming the North Atlantic Drift
Gulf Stream
any disease that destroys plants
blight
a large mass of land ice that is or has been in motion
glacier
a glacier formed at high latitudes that covers large area of land
continental glacier
a relatively small glacier formed at high elevations in the mountains
alpine glacier
the final deposits of glacial debris marking the farthest advance of a glacier
terminal moraine
the process whereby large pieces of ice break off when a glacier enters water
calving
scraping action due to the weight of glaciers leaving bare bedrock
glacial scouring
the ability of the planet to seek a state of equilibrium to equalize or balance itself
isostasy
a fan-shaped stream deposit extending out from the bases of mountain ranges
alluvial fan
a large mountain hollow created by a glacier
cirque
a glacial tributary valley that is not as deeply eroded as the main glacial valley and thus remains higher when the glacier retreats
hanging valley
a deep crack in a glacier due to movement
crevasse
having the ability to change shape without breaking
plastic
a long, narrow arm of the sea which formed as the result of drowning of a glaciated valley
fiord