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Study Guide Answers

1.     What is the descriptive term for the subtropical belts of high atmospheric pressure that contain most of the earth's deserts?
     Horse Latitudes
2.     What is the name of the large North African desert?
     Sahara
3.     Semi-arid regions with enough moisture to support a cover of grasses are called _______________ .
     steppes
4.     Deserts may become cool, or even cold, at night because they have little insulating cloud cover. True or false?
     true
5.     The rolling sand dunes found in many deserts are called: a. erg b. reg c. ger d. swales
     a. Erg
6.     What is the scientific name for desert pavement?
     reg
7.     In deserts, the largely mechanical weathering of rock surfaces is usually quite rapid. True or false?
     false
8.     The occasional desert streams, known as wadis in North Africa, are called _______________ in North America.
     arroyos
9.     Deflation occurs when small particles are picked up by the wind and deposited many miles away. True or false?
     true
10.     The erosion caused by wind-driven sand and dust particles is called _____________________ .
     abrasion
11.     The salt pans that develop from the evaporation of shallow desert lakes are called ____________ .
     playas
12.     What is the term for rivers, such as the Nile and the Colorado, that flow through desert regions with water from more humid regions?
     exotic rivers
13.     The havens for life in the harsh desert climate, found close to streams, springs, or wells, are called: a. playas b. oases c. arroyos d. steppes
     b. Oases
14.     In the basin and range country, the alluvial fans of various canyons overlap to become a large apron of debris called a _________________ .
     bajada
15.     Mesa and scarp terrain are particularly common in: a. California b. Texas c. West Virginia d. Arizona
     d. Arizona
16.     A mesa is to a butte as a butte is to a _____________________ .
     pinnacle
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.