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38 Cards in this Set

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The process of _____________ wears away suurface materials and move them from one location to another.
erosion
_____________ is the final stage of an erosional process.
deposition
T/F Gravity is the force of attraction that exsists between all objects.
True
When gravity alone causes materials to move downslope, this type of erosion is called
mass movement
____________ is a mass movement that happens wehn loose materials or rock layers slip down a slope
slump
______________ gets it name from the way sediments slowly inch their way down a hill
creep
Moving mass of ice and snow
glacier
The process by which rock pieces are lifted out by the glacial ice sheets
plucking
The mixture of different sixed sediments is called _______________.
till
such a rigde is called __________.
moraine
_____________-,it blows across loose sediment,removing small particles such as caly,silt,and sand.
deflation
when these windblown sediments strick rock,they erode by____________.
abrasion
these wind deposits of fine-grained sediments are known as_________.
loess
A deposit from a glaciers ice
outwash
Large blocks of rocks tumbling down a steep slope
rockslide
Deposits formed when windblown sediments pile up behind an obstacle
dunes
One way to reduce erosion
planting
an activity that can increase erosion on steep slopes
building
____________ are broad, step-like cuts in the side of slope
Terraces
________________ occur when berock is gourged by rock fragments
grooves
_____________ are bowl-shaped basins resulting from plucking on the side of a mountain.
cirques
Many farmland of the midwestern United States are on fertile soild evolved from ________ deposits
loess
__________ is similar to sandblasing
abrasions
Agents of erosion __________ sediments when they lose thier energy of motion
drop sediments
Creep Erosion
1-The gound freezes
2-Expanding water in the soil
3-The frozen soil thaws
4-Seiments slowly fall downslope
Glacial Erosion
1-a glacier is formed
2-plucking occurs
3-Striations are gourged
4-The glacier loses energy
5-Till is deposited
Compare and Contrast Slum and Creep?
Slump takes place on steep slopes when loose materials slip downward;Creep takes place on hills where sediments mvoe very slowly downslope
Sand dunes are found on the eastern and southeaster shores of Lake Michigan. They are not found on the western shore why?
winds cause sand to build up on the beaches of the eastern and southeastern shores. these winds tend to blow the sand on the western ashore into the lake.
How have volcano effeced the ice age?
contributed to ice age
Which are steeper younger mountains or older mountains
younger mountains are usually steeper because as mountains get older mudlfows, rockslides, creep, and slump cuase the sloper of mountains to decrease
Losse materials or rock layers slip downward
slump
large blocks of rocks break loose and tumble
rockslides
deposits from weosion are usually cone shaped masses
mudflows
This kind of erosion is common in areas when freezing and thawing occurs
creep
This erosion occurs happens when sediments move slowly down a slope
creep
The erosion is mass movement
mudflows
This erosion occurs after a heavy rain
mudflows
Signs warning people about this kind of erosion may be posted along the road
rockslides