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8th science 4

ch. 4

a huge bowl shaped depression dug out by a valley glacier is a cirque
what is a natural ridge formed along the edge of a river's channel levee
Which type of weathering involves the breaking or peeling away of rock into layers exfoliation
a pillarlike structure of rock formed when the middle of a sea arch collapses is a sea stack
the feature formed by streams merging and flowing toward the sea as a large river is a river system
what is produced when a sea cave is eroded continually sea arch
large, deep grooves and scratches in rock, produced by glaciers, are striae
the piles of debris left behind when a glacier melts are moraines
a low hill formed when a glacier overruns a moraine is a drumlin
deposits of clay and silt left by a sandstorm are loess
What type of weathering occurs when rainwater soaks into cracks in a rock and freezes, splitting the rock ice wedging
when a glacier-carved valley fills with seawater a ?? forms fjord
which natural acid, found in rainwater and ground water, promotes chemical weathering of rocks carbonic acid
the most important effect of wind erosion is deflation
regions of the earth's surface where limestone is exposed and abundant are called ?? regions karst
ice sheets smaller than continental glaciers are ice caps
a long pile of rocks deposited parallel to the shore to prevent erosion is a breakwater
the sharp steeple-shaped point of a mountain with three or more cirques is a horn
a large, funnel-shaped depression in the ground caused by cavern collapse is sinkhole
narrow, sandy islands that lie off the coast of the mainland are called barrier islands
the eroding action of windblown sand is called abrasion
suspension, saltation, and creep in which wind transports sediments are ? processes aeolian
the natural processes that break down rocks are collectively called weathering
a spirelike mass of dripstone on the floor of a cave is called a stalagmite
the method of erosion prevention that modifies a smooth slope into a series of level, stairlike steps is terracing
the carrying away of rock fragments, such as by wind or running water, is called erosion
the type of rock most commonly associated with caverns is limestone
particles too heavy to be lifted by the wind are rolled in short bursts through a process called creep
the source of a river headwaters
the sediments carried by a stream load
one of numerous streams that feed into a river at various points tributary
land that borders a river and is covered by river water in flood time floodplain
a winding, looping curve in a river on flat ground meander
lake formed when a sharp curve in a river is cut off from the rest of the river oxbow lake
fan-shaped deposit of sediments at the mouth of a river delta
region of land drained by a stream or river system drainage basin
a large stream that carries water from the mountains to the sea river
fan-shaped deposit of sediments at the mouth of a dry stream bed in the desert alluvial fan
what are two general types of weathering chemical and physical
what are the two major types of glaciers continental and valley (alpine)
Name the deep cracks that develop on the surface of a glacier crevasses
what are limestone formations that have become filled with various passageways and large caves called caverns
what is the main agent of chemical weathering water
what is a vertical face of rock called that forms when the sea erodes land sea cliff
Created by: Harrison83