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15 Cards in this Set

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  • Back
erosion
the breakdown and removal of soil and rock by water, wind or other forces
deposition
the process by which eroded earth materials settle out in another place
sediments
eroded earth materials that have been deposited
channel
the course or path the water takes in a stream or river
basin
a low area in which sediments are often deposited
drainage basin
a system of rivers and streams that drain an area like the Colorado Plateau
slope
the angle or slant of a stream channel or land surface
flood
a very heavy flow of water which is greater than the normal flow of water and goes over the stream's normal channel
flash flood
rises and falls rapidly with little or no advance warning, usually as the result of very heavy rainfall over a relatively small area. Can also be caused by dam failure or the thaw of an ice jam
levee
an embankment along a stream that protects land from flooding. Can be natural or man-made.
dam
a construction or wall across a river that holds back the water flowing through the river, creating a reservoir or lake
base
bottom of a mountain
contour line
a line on a topographic map that connects points of equal elevation
contour interval
the difference in elevation between contour lines
elevation
vertical distance, or height above sea level