Water Erosion Answers

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1
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Deltas are built up by

A
deposition.
B
leaching.
C
abrasion.
D
erosion.
2
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An alluvial fan may form where a stream flows out of a narrow mountain valley, slows down, and deposits sediment.

A
T
B
F
3

The main factors that determine the amount of runoff in an area include the shape of the land, how people use the land, the type of soil, and:

A
amount of soil and vegetation
B
amount of rain and vegetation
C
amount of rain and amount of soil
D
amount of rain and rock formations
4

A wide sloping deposit of sediment formed where a stream leaves a mountain range is called a(n)

A
divide.
B
drainage basin.
C
alluvial fan.
D
slump.
5

Where a river flows from an area of harder rock to an area of softer rock, the softer rock may wear away, eventually forming a drop called a(n)

A
oxbow lake.
B
gully.
C
waterfall.
D
delta.
6

Please select the word from the list that best fits the definition

A
Karst topography
B
delta
C
flood plain
D
groundwater
E
water
F
runoff
7

Please select the word from the list that best fits the definition

A
Karst topography
B
delta
C
flood plain
D
groundwater
E
water
F
runoff
9

Please select the word from the list that best fits the definition

A
Karst topography
B
delta
C
flood plain
D
groundwater
E
water
F
runoff
10

A river flowing across a wide flood plain begins to form looplike bends called

A
rills.
B
meanders.
C
outside curves.
D
deltas.

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