Multiple an option Questions for Deserts and also Winds - thing 13Each chapter will include a couple of questions draft to test your expertise of material covered in the chapter and also in the Internet-based resources. Your answers are not being recorded. Try the following. Geologic processes powered by the wind are dubbed __________ processes.barchancorioliseolianyardangTurbulence that air rises in proportion come the ___________ that the wait flow.volumevelocityaccelerationdistanceDue to the Coriolis effect, any kind of current of waiting or water is deflected come the ____ in the north hemisphere and to the _____ in the southern hemisphere.east ... Easteast ... Westwest ... Eastwest ... WestThe planet rotates indigenous _______ to _______ .west ... Easteast ... Westnorth .... Southsouth ... NorthSand seed saltating in air can jump greater than sand seed saltating in water due to the fact that ___________ . Water is less dense than airair is much less viscous 보다 waterwind velocity is much faster than water velocitygrains are suspended in air longer than they space in waterWhich that the complying with is critical source of dust?volcanic dust from eruptionsclay minerals from soilsorganic sources, including charcoal, pollen and also bacteriaall the theseCross beds in a lithified dune dip come the west. During deposition that the sand, the prevailing winds were most likely from the __________ .eastwestnorthsouthLarge dune fields, or seas that sands, are called _______ . DraasbarchansregsergsDeserts v a pebble surface are called _________ . DraasbarchansregsergsWhich the the adhering to are not regarded wind erosion?loessventifactdeflationblowoutThe loess deposited in the top Mississippi sink was acquired primarily native ________ . Volcanic dustdesert areas lying come the westglacial depositscoastal sand dunesWhy does volcanic dust often tend to travel additional than wind-blown dust acquired from the continents?because volcano dust is erupted high right into the atmospherebecause volcanic dust is less dense than dust obtained from the continentsbecause volcanic dust is written of quartz vice versa, dust obtained from the continents is created of feldsparall that theseThe good Basin and Mojave deserts of western north America exist mostly _________ .because castle lie near the equatorbecause lock lie hundreds of kilometers from the oceanbecause lock lie in the rainshadow of coastal mountainsall that theseMuch of a desert"s surface is composed of sand, gravel, and also rock rubble because _________ . Clay minerals type slowly in a desert environmentwind blows far clay and also soil before it deserve to accumulate to an excellent thicknessvegetation is sparse and also cannot stop erosion of soilall of theseWhich that the following would you the very least expect to discover in a desert?playa lakesrounded, soil-covered hillssteep flow valleys and also gorgesdune fieldsWhich of the adhering to is not a wind deposit?pedimentsand duneloessall of these room wind depositsA broad, gently-sloping platform of bedrock that is left behind as a mountain front is eroded is referred to as a(n) ___________ .pedimentalluvial fanmesaergWind speeds of 117 kilometers every hour or an ext constitute a _______moderate to strong breezemoderate to strong galewhole gale come stormhurricaneIn warm zones that the Earth in between 30o and 60 o latitude, the prevailing winds come native the ________.northsoutheastwestIn the figure above, the letter A v D represent wind names. Which of the complying with is false?
A and B represent the "westerlies"A and C represent "trade winds"C and also D represent "trade winds"none of these statements room falseRipples are generally oriented ________ to the present directionparallel30 degrees45 degreesperpendicularIn a huge dust storm, roughly how lot dust have the right to 1 cubic kilometre of air carry?1 ton10 tons100 tons1000 tonsFine-grained dust corpuscle from the eruption the Mr. Pinatubo continued to be in the setting for how long?1 - 2 months3 - 4 months1 -2 years3 - 4 yearsWhite Sands national Monument includes sand dunes made up of _________?quartzgypsumorganic sources including pollen and also bacteriafeldsparWhat is the primary cause of frosting top top the surface ar of quartz sand grains?impacts with other sand grainsabrasion by air currentsslow dissolved by duenone the theseWhich of the following statements is false?wind is a much more effective erosion certified dealer in wet climateswind is a more effective erosion agent in dry climateswind is one equally efficient erosion agent in wet and also dry climateswind does not cause erosionThe process by i m sorry the ground surface is lower by wind erosion is dubbed _______.deflationinflationablationnone of theseWhich the the complying with will no accelerate deflation?established vegetationconstructionmotor vehicle tracksplowingHow walk desert pavement form?by intense chemical weatheringby present erosionby extreme mechanical weatheringby wind erosionYardangs are:sand dunes i ordered it in long, parallel rowseroded bedrock v long, parallel grooveslong, parallel ridges eroded by dustnone the theseWhich that the following promote the advance of sand dunes?strong windsa it is provided of loosened sanddry climateall of theseSand will certainly accumulate ___________.on the lee next (downwind) next of a boulderon the windward next (upwind) the a boulderon both the lee side and the windward side of a boulderboulders cannot cause sand come accumulate
Given the relative positions that the sand dune and also rock shown here, the wind direction is mainly ___________north to south to northeast come westwest come eastThe steeper, downwind side of a sand dune is referred to as a _________.sand driftventifactslip facestreamlineA cross bed maintained in an eolian sandstone represents _________.the optimal of a former sand dunethe bottom of a previous sand dunethe upwind next of a previous sand dunethe downwind side of a former sand dune
This sand dune is a _______ dunebarchantransverseblowoutlinearThe wind direction i m sorry would create this dune is __________.north come southsouth come northeast to westwest come eastIn a barchan dune, the points of the crescent suggest ______ and the slip confront is the ________ downwind curve that this duneupwind .... Concaveupwind .... Convexdownwind ....
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Concavedownwind ..... ConvexSand dunes behind beaches space typically_______.barchantransversebarchanslinear dunesDuring erosion loess tends to break turn off __________.in horizontal layersin vertical sheetsalong rarely often rare cracksslowly, serial by grainWhich that the complying with is not pertained to wind erosion?loessventifactsdeflationblowoutsLong sand ridges that are more or less parallel come the prevailing wind are referred to as ______.barchan duneslinear dunestransverse dunesblowoutsThrough geologic time the inner of Australia has readjusted from a moist, humid climate come a desert becauseplate collisions have built mountains close to the coast line which block moisture-bearing winds indigenous the continent"s interiorAustralia has actually moved northward right into an arid, subtropical zoneAustralia has actually moved southward the end of the component of the much more humid trade windsthe continent has actually grown through volcanic task making the internal too much away indigenous moisture-bearing windsRadar imaging native the an are shuttle undertaking has noted evidence that the Sahara Desert __________.has always been an arid environmentwas when tropical with countless different types of vegetationonce had considerable system of river channels which are now dryhas sand dunes in excess of 300 m in heightThe revolution of semi-arid regions into deserts is referred to as _______.deflationdeforestationdetoxificationdesertificationWhat minerals room responsible for the orange-brown colour of weathered surfaces in the desert?quartzalkali feldspariron oxidesall that theseApproximately what percentage of the world"s deserts space covered v sand?5%20%50%100%A wadi is a ________shallow lakeplaya v salt sedimentsdry washflood depositsA mesa is __________flood deposit in a little dry washa level plateau surrounded by steep cliffsmountain showing horizontal sedimentary layeringa pediment with an alluvial pan coverTry these fill-in-the blanksReturn to the physical Geology home Page