Question 1

A(n)_______________ is a wind-sculpted, aerodynamically shaped remnant ridge left behind after the surrounding material has been eroded by abrasion. ​

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Question 2

Wind blowing fast enough or with enough turbulence over an area of loose sediment is able to pick up and remove small fragments of rock in a process called _______________.

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Question 3

How do alluvial fans form? ​

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Question 4

A(n)____________________ stream originates in a humid region but flows across a desert region with enough discharge to reach the sea. ​

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Question 5

Why are washes prone to flash floods? ​

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Question 6

Particles that are too large to be carried in eolian suspension are bounced along the ground as part of the bed load in the transportation process of _______________.

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Question 7

Playas that receive most of their water from surface runoff typically have a smooth clay surface, sometimes called a(n)_______________, that is hard when dried out by the desert sun but extremely gooey and slippery when wet. (two words)

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Question 8

In eolian _______________, particles already being transported by the wind strike rocks or sediment and break off or dislodge additional rock fragments. ​

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Question 9

Name a type of sand dune that could form in each of these conditions: an area with abundant sand supply and winds that blow from a constant direction, an area with bidirectional winds blowing from neighboring quadrants (such as northwesterly and southwesterly), and an area with winds that blow from varying directions. ​

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Question 10

A rock that has been trimmed back to a smooth slope on one or more sides by sandblasting is called a(n)_______________. ​

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Question 11

A(n)_______________ dune is a crescent-shaped dune with arms that are stabilized by vegetation and point unwind.

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Question 12

Dunes that have a pyramidal shape with ridges of sand radiating out from a high center point are called _______________ dunes. ​

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Question 13

If the vegetation cover on a stabilized dune is breached, perhaps from damage by range animals or off-road vehicles, the wind can then remove some of the sand, creating a depression called a(n)_____.

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Question 14

A coalesced apron of alluvial fans along the base of desert mountains is called a(n)_______________. ​

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Question 15

How do sand dunes migrate? ​

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Question 16

How is a pediment different from an alluvial fan? ​

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Question 17

Desert basins of interior drainage surrounded by mountains are called _______________. ​

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Question 18

Through additional erosion of the caprock from all sides, a mesa can be reduced to a(n)_______________.

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Question 19

The steep downwind slope of a dune that lies at the angle of repose is known as the _______________. (two words)

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Question 20

Landforms that are created by wind are called _______________ landforms. ​

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Quiz 18: Arid Region and Eolian Landforms

A(n)_______________ is a wind-sculpted, aerodynamically shaped remnant ridge left behind after the surrounding material has been eroded by abrasion. ​

Wind blowing fast enough or with enough turbulence over an area of loose sediment is able to pick up and remove small fragments of rock in a process called _______________.

How do alluvial fans form? ​

A(n)____________________ stream originates in a humid region but flows across a desert region with enough discharge to reach the sea. ​

Why are washes prone to flash floods? ​

Particles that are too large to be carried in eolian suspension are bounced along the ground as part of the bed load in the transportation process of _______________.

Playas that receive most of their water from surface runoff typically have a smooth clay surface, sometimes called a(n)_______________, that is hard when dried out by the desert sun but extremely gooey and slippery when wet. (two words)

In eolian _______________, particles already being transported by the wind strike rocks or sediment and break off or dislodge additional rock fragments. ​

A rock that has been trimmed back to a smooth slope on one or more sides by sandblasting is called a(n)_______________. ​

A(n)_______________ dune is a crescent-shaped dune with arms that are stabilized by vegetation and point unwind.

Dunes that have a pyramidal shape with ridges of sand radiating out from a high center point are called _______________ dunes. ​

If the vegetation cover on a stabilized dune is breached, perhaps from damage by range animals or off-road vehicles, the wind can then remove some of the sand, creating a depression called a(n)_____.

A coalesced apron of alluvial fans along the base of desert mountains is called a(n)_______________. ​

How do sand dunes migrate? ​

How is a pediment different from an alluvial fan? ​

Desert basins of interior drainage surrounded by mountains are called _______________. ​

Through additional erosion of the caprock from all sides, a mesa can be reduced to a(n)_______________.

The steep downwind slope of a dune that lies at the angle of repose is known as the _______________. (two words)

Landforms that are created by wind are called _______________ landforms. ​

A(n)_______________ is a wind-sculpted, aerodynamically shaped remnant ridge left behind after the surrounding material has been eroded by abrasion.

How do alluvial fans form?

A(n)____________________ stream originates in a humid region but flows across a desert region with enough discharge to reach the sea.

Why are washes prone to flash floods?

In eolian _______________, particles already being transported by the wind strike rocks or sediment and break off or dislodge additional rock fragments.

A rock that has been trimmed back to a smooth slope on one or more sides by sandblasting is called a(n)_______________.

Dunes that have a pyramidal shape with ridges of sand radiating out from a high center point are called _______________ dunes.

A coalesced apron of alluvial fans along the base of desert mountains is called a(n)_______________.

How do sand dunes migrate?

How is a pediment different from an alluvial fan?

Desert basins of interior drainage surrounded by mountains are called _______________.

Landforms that are created by wind are called _______________ landforms.