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Study Guide Answers

1.     Continental glaciers are also known as _________________ _____________________ .
     ice sheets
2.     Continental glaciers show _________________ [gentler/stronger] contours than alpine glaciers do.
     gentler
3.     At the height of the Pleistocene Epoch, glaciers covered ________ percent of the earth's land areas.
     30
4.     Glaciers form when more snow ____________ in the winter than _____________ in the summer.
     falls, melts
5.     ______________ is an intermediate stage between snow and ice.
     Firn
6.     _________________ glaciers are those associated with heavy snowfalls and cool summers.
     Alpine
7.     _________________ glaciers are those Alpine glaciers that are confined to amphitheaters in the high peaks.
     Cirque
8.     ____________________ glaciers flow down the mountainsides.
     Valley
9.     Alpine glaciers flow out from many different directions. True or false?
      false
10.     Peaks that rise above continental ice sheets are called _____________________ .
     nunataks
11.     A(n) _______________ is a jagged spine of rock created as the cirques on opposite sides of a ridge cut their headlong paths.
     arÍte
12.     _______________ on high slopes form V-shaped valleys.
     Streams
13.     Basins where decayed or weak rock was gouged out of a valley floor became lakes known as "____________________ ."
     tarns
14.     The process known as "_____________________ " occurs when glaciers move over the land surface, picking up rock and soil.
     plucking
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.