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A _____ is a fan shaped deposit of sediments left as a stream slows. playa b. arroyo c. dune d. alluvial fan 62. An environment with a lack of...


61. A _____ is a fan shaped deposit of sediments left as a stream slows.

a. playa 

b. arroyo 

c. dune 

d. alluvial fan 



 


62. An environment with a lack of accumulated water is _____.

a. subtropical 

b. arid 

c. humid 

d. fertile 



63. A dry desert riverbed formed by running water flowing only after rainfall is a (an) _______.

a. playa 

b. arroyo 

c. wash 

d. Both b and c are correct 


64. A temporary desert lake that fills with runoff after rainfall, then quickly dries up is called a (an) _____.

a. . playa 

b. arroyo 

c. loess 

d. Both a and c are correct 


65. A deposit of windblown silt particles is (a)______.

a. slipface 

b. loess 

c. dune 

d. wash 


66. ___ ___ are found on the downwind side of a mountain range.

a. subtropical deserts 

b. rainshadow deserts 

c. no deserts 

d. Both a and b are correct. 


67. The ratio between the amount of water vapor in the air and the amount of water vapor the air can hold is known as _____

a. dew point 

b. relative humidity 

c. evaporation 

d. desertification 


68. ______ are found in both northern and southern hemispheres at around 30° in latitude.

a. subtropical deserts 

b. rainshadow deserts 

c. no deserts 

d. areas of rainfall 






69. Glaciers often leave behind ______, or long grooves in the bedrock.

a. striations 

b. erratics 

c. tarn 

d. drift 


70. If a cirque fills with water after a glacier recedes it forms a _____

a. kettle lake 

b. arête 

c. tarn 

d. kettle 


71. Aretes, horns and cirques are examples of _____ glacial features.

a. erosional 

b. erratic 

c. depositional 

d. recessional 


72. Kettles and moraines are examples of _____ glacial features.

a. erosional 

b. mountain 

c. depositional 

d. erratic 


73. A break in the ice near the surface of a glacier is called a (an) _____.

a. zone of accumulation 

b. zone of wastage 

c. crevasse 

d. snow line 


74. Glacial ice is different from other ice because the crystals become _____.

a. cooler 

b. slipperier 

c. interlocked 

d. less dense 


75. ______ cover Greenland and much of Antarctica.

a. alpine glaciers 

b. continental glaciers 

c. ice bergs 

d. crevasses 


76. A build-up of snow occurs at the _____

a. snow line 

b. zone of accumulation 

c. zone of wastage 

d. zone of fracture 




 


77. _____ is the balance between snow accumulation and snow melt.

a. glacial budget 

b. zone of accumulation 

c. zone of wastage 

d. glacial flow 


78. When more snow builds up than melts in a season the glacier _____

a. starts to move down hill 

b. advances 

c. retreats 

d. has a balanced glacial budget 


79. When a glacier retreats it often drops off its load of rock particles in deposits called

a. erratics 

b. kettles 

c. drift 

d. striations 


80. A _____ marks the farthest extent to which a glacier advanced.

a. lateral moraine 

b. recessional moraine 

c. Drift 

d. terminal moraine 

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