Quiz 15: Wind Processes
Geology/Geography/Oceanography/Atmospheric Sciences
Q 1Q 1
Arid and semiarid climates cover about of Earth's surface.
A)three-fourths
B)a quarter
C)two-thirds
D)one-half
E)one-third
Free
Multiple Choice
E
Q 2Q 2
The term "eolian" refers to
A)stream-related processes.
B)glacial processes in areas outside the polar regions.
C)erosion,transportation,and deposition by the wind.
D)weathering and mass movement in humid regions.
E)coastal erosion and deposition.
Free
Multiple Choice
C
Q 3Q 3
For purposes of discussing eolian processes,the wind acts like a
A)solid.
B)gas.
C)plasma.
D)fluid.
E)degenerate matter.
Free
Multiple Choice
D
Q 4Q 4
The ability of the wind to move materials
A)exceeds that of other transporting agents,such as water and ice.
B)is small compared to other transporting agents,such as water and ice.
C)is greater than that of water because of the higher density of air compared to water.
D)increases with decreased wind speed.
E)is equal to other transporting agents,such as water and ice.
Free
Multiple Choice
Q 5Q 5
a()Ground view b()Aerial view
Dust storms engulf Phoenix,Arizona,in 2013 (ground view)and 2016 (aerial view).
Dust storms,such as one from Arizona in 2013,are caused by downbursts associated with thunderstorms.Such storms are termed
A)playas.
B)deflation.
C)blowout depression.
D)ventifacts.
E)haboobs.
Free
Multiple Choice
Q 6Q 6
The transport of small sand particles (0.07 to 0.20 mm)along the ground in a bouncing and skipping action is known as
A)deflation.
B)abrasion.
C)saltation.
D)surface creep.
E)traction.
Free
Multiple Choice
Free
Multiple Choice
Q 8Q 8
The sliding and rolling along the ground of particles larger than 0.5 mm is known as
A)deflation.
B)abrasion.
C)saltation.
D)surface creep.
E)traction.
Free
Multiple Choice
Q 9Q 9
The removal and lifting of individual loose particles by the wind is termed
A)deflation.
B)abrasion.
C)saltation.
D)deposition.
E)traction.
Free
Multiple Choice
Q 10Q 10
A depression created by deflation is known as a
A)playa.
B)bolson.
C)blowout.
D)structural basin.
E)haboob.
Free
Multiple Choice
Q 11Q 11
Large depressions,such as the Qattâra depression,formed as a result of
A)deflation.
B)orogeny.
C)subduction.
D)converging plates.
E)tectonic forces.
Free
Multiple Choice
Q 12Q 12
The grinding and shaping of rock surfaces by the "sand blasting" action of particles captured in the air is termed
A)deflation.
B)abrasion.
C)saltation.
D)deposition.
E)traction.
Free
Multiple Choice
Q 13Q 13
The term used to describe rocks that are pitted,fluted,or polished from eolian erosion is
A)desert pavement.
B)pumice.
C)ventifacts.
D)deflation hollows.
E)dunes.
Free
Multiple Choice
Q 14Q 14
Elongated,streamlined ridges aligned parallel to the most effective wind direction are called
A)ventifacts.
B)yardangs.
C)desert pavements.
D)alluvial rock structures.
E)terraces.
Free
Multiple Choice
Q 15Q 15
Desert pavement refers to
A)specially constructed roadbeds in dry and hot regions.
B)surfaces of concentrated pebbles and gravels.
C)deposits of silt and clay.
D)sand-covered surfaces.
E)any rock shaped by eolian erosion.
Free
Multiple Choice
Q 16Q 16
The deflation hypothesis of desert pavement formation states
A)wind removes fine particles leaving large pebbles,gravels,and rocks,which become consolidated.
B)wind delivers fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward.
C)water removes fine particles leaving large pebbles,gravels,and rocks,which become consolidated.
D)water delivers fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward.
E)both wind and water deliver fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward.
Free
Multiple Choice
Q 17Q 17
The sediment-accumulation hypothesis of desert pavement formation states
A)wind removes fine particles leaving large pebbles,gravels,and rocks,which become consolidated.
B)wind delivers fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward.
C)water removes fine particles leaving large pebbles,gravels,and rocks,which become consolidated.
D)water delivers fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward.
E)both wind and water remove fine particles leaving large pebbles,gravels,and rocks,which become consolidated.
Free
Multiple Choice
Q 18Q 18
Which of the following terms is not a correct reference to a desert pavement?
A)gibber plain
B)lag gravels
C)sand seas
D)reg desert
E)gobi
Free
Multiple Choice
Q 19Q 19
The smallest features shaped by individual saltating grains are
A)ripples.
B)dunes.
C)sand seas.
D)reg deserts.
E)ventifacts.
Free
Multiple Choice
Q 20Q 20
An extensive area of sand and sand dunes is known as a(n)
A)reg desert.
B)erg desert,or sand sea.
C)lag desert.
D)desert pavement.
E)gibber plain.
Free
Multiple Choice
Q 21Q 21
Which side of a dune typically has a slope angle equal to that of the angle of repose for sand?
A)windward
B)leeward
C)stoss
D)top
E)bottom
Free
Multiple Choice
Q 22Q 22
Relative to dune movement and form,a dune's slipface forms on which side?
A)leeward side
B)windward side
C)freedune side
D)direction opposite of dune movement
E)It is not associated with a particular side.
Free
Multiple Choice
Free
Multiple Choice
Q 24Q 24
Which of the following is not a general shape upon which scientists classify dunes?
A)rectilinear
B)crescentic
C)linear
D)star
E)parabolic
Free
Multiple Choice
Q 25Q 25
dunes form with their tips pointing downwind,usually in areas with limited sand supply and little to no vegetation.
A)Linear
B)Barchan
C)Longitudinal
D)Transverse
E)Parabolic
Free
Multiple Choice
Q 26Q 26
In vegetated dune landscapes,dunes form with their tips pointing upwind.
A)Linear
B)Barchan
C)Longitudinal
D)Transverse
E)Parabolic
Free
Multiple Choice
Q 27Q 27
dunes form parallel to the prevailing wind,often extending for hundreds of kilometers in length.
A)Linear
B)Barchan
C)Longitudinal
D)Transverse
E)Star
Free
Multiple Choice
Q 28Q 28
dunes are the largest in size and have multiple slipfaces produced by winds from varying directions.
A)Linear
B)Barchan
C)Longitudinal
D)Transverse
E)Star
Free
Multiple Choice
Q 29Q 29
Windblown dust that accumulates into homogeneous deposits is known as
A)gobi.
B)deflation hollows.
C)yardangs.
D)desert pavement.
E)loess.
Free
Multiple Choice
Q 30Q 30
Which of the following is correct regarding loess deposits?
A)They are principally composed of sands and gravels.
B)They are formed of fine-grained clays,silts and fine.
C)They are found only in the United States.
D)They form only following glacial activity.
E)They are poor agricultural soils.
Free
Multiple Choice
Q 31Q 31
The loess deposits in Europe and North America are thought to be derived mainly from
A)alluvium,i.e.stream deposited materials.
B)ocean sediments.
C)windblown desert sediments.
D)glacial and periglacial sources.
E)deeply entrenched river channels.
Free
Multiple Choice
Q 32Q 32
The vast loess deposits in China are thought to be derived mainly from
A)alluvium,i.e.stream deposited materials.
B)ocean sediments.
C)windblown desert sediments.
D)glacial and periglacial sources.
E)deeply entrenched river channels.
Free
Multiple Choice
Q 33Q 33
Factors that influence dry climates include all the following except
A)seasonal influence of the ITCZ.
B)dry,subsiding air associated with subtropical high pressure systems.
C)location in the rain shadow of mountains.
D)cool,stabilizing ocean currents along the western margins of continents.
E)location in continental interiors.
Free
Multiple Choice
Q 34Q 34
The general term for the land degradation in arid and semiarid regions characterized by expansions of deserts is
A)desertification.
B)woody plant encroachment.
C)eolian process.
D)deflation.
E)saltation.
Free
Multiple Choice
Q 35Q 35
Which of the following is not considered a cause of desertification?
A)poor agricultural practices
B)climate change
C)poor soil-moisture management
D)salinization
E)afforestation
Free
Multiple Choice
Q 36Q 36
Areas at risk of desertification Which of the following areas is at highest (very high)risk of desertification?
A)the U.S.Great Plains
B)the Sahel
C)central Canada
D)eastern China
E)central Australia
Free
Multiple Choice
Q 37Q 37
The Aral Sea,once one of the four largest lakes in the world,has steadily decreased since the 1960s on account of
A)diversion of incoming rivers for irrigation.
B)climate change.
C)urbanization.
D)hydroelectric production.
E)deforestation and resulting sedimentation.
Free
Multiple Choice
Q 38Q 38
The leading cause of decline in Lake Urmia is
A)drought.
B)climate change.
C)urbanization.
D)hydroelectric production.
E)water withdrawal.
Free
Multiple Choice
Q 39Q 39
Ephemeral channels that form in dryland climates in response to infrequent precipitation events are known as
A)arroyos.
B)hollows.
C)yardangs.
D)ventifacts.
E)alluvial fans.
Free
Multiple Choice
Q 40Q 40
Cone-shaped deposits of sediment often found at mouth of canyons in arid and semiarid climates are called
A)deposition.
B)deltas.
C)alluvial fans.
D)clastics.
E)arroyos.
Free
Multiple Choice
Q 41Q 41
Alluvial fans are formed as flowing water as it leaves a constricted channel.
A)gains velocity
B)changes direction
C)down cuts
D)loses velocity
E)expands.
Free
Multiple Choice
Q 42Q 42
A forms when individual alluvial fans coalesce.
A)star dune
B)playa
C)yardang
D)desert pavement
E)bajada
Free
Multiple Choice
Q 43Q 43
The coarsest materials,such as gravel,of an alluvial fan are found
A)near the mouth of the canyon.
B)at the edge of the fan.
C)throughout the whole fan.
D)within a playa.
E)at the base of the fan.
Free
Multiple Choice
Q 44Q 44
A is a dry bed of an ephemeral lake a dryland region.
A)star dune
B)playa.
C)yardang
D)desert pavement
E)bajada
Free
Multiple Choice
Q 45Q 45
Dryland rugged terrain of slopes dissected by rills and gullies are known as
A)qanats.
B)arroyos.
C)badlands.
D)bajadas.
E)playas.
Free
Multiple Choice
Q 46Q 46
A large region identifiable by several topographic or geological traits is known as a(n)
A)topographic region.
B)ecoregion.
C)physiographic province.
D)biome.
E)alluvial terrace.
Free
Multiple Choice
Q 47Q 47
The Basin and Range Province in the western United States is an example of a landscape.
A)tensional
B)reverse
C)horst and graben
D)compressional
E)Great Plains
Free
Multiple Choice
Q 48Q 48
Weathering of sandstone alcoves used for ancient cliff dwellings An alcove in sandstone,such as that in the Cliff House at Mesa Verde,is indicative of which weathering process?
A)exfoliation
B)carbonation
C)root wedging
D)salt-crystal growth
E)hydrolysis
Free
Multiple Choice
Q 49Q 49
Rocks of the same composition and structure found in the same area may have weathered at uneven rates due to a variety of factors.This is known as .
A)angle of repose
B)jointing
C)inertial resistance
D)denudation
E)differential weathering
Free
Multiple Choice
Q 50Q 50
are flat-topped landforms with steep slopes resulting from differential weathering.
A)Mesas
B)Inselbergs
C)Badlands
D)Arroyos
E)Alluvial fans
Free
Multiple Choice
Q 51Q 51
are steep-sided landforms resulting from the weathering and mass wasting of mesas.
A)Volcanic necks
B)Badlands
C)Dikes
D)Plugs
E)Buttes
Free
Multiple Choice
Q 52Q 52
are isolated remnants of resistant rock and products of long-term weathering and erosion.
A)Mesas
B)Inselbergs
C)Badlands
D)Arroyos
E)Alluvial fans
Free
Multiple Choice
Q 53Q 53
Dune migration on the Navajo Nation in the U.S.Southwest is an example of
A)desertification.
B)woody plant encroachment.
C)eolian transport.
D)deflation.
E)saltation.
Free
Multiple Choice
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Q 58Q 58
What is loess? How do the loess deposits of North America and Europe vary from those in China?
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