21) Inselbergs are ________. A) insulated icebergs floating in a hot spring B) blowouts cut from bedrock in mountainous areas C) lithified rock formed by cementation of wind-deposited, dune sands D) bedrock hills in a highly eroded desert landscape 22) A ________ is formed by abrasion of rocks by windblown sand. A) playa B) ventifact C) pediment D) desert pavement 23) Which one of the following would probably not affect the size and depth of a blowout? A) a rise in sea level B) the near surface water table C) type and density of vegetation D) areas of desert pavement 24) What mature, desert landscape feature consists of coalesced alluvial fans? A) balda B) bajada C) bahia D) baja 25) A ________ is a crescent-shaped dune whose tips point downwind. A) parabarcal B) transverse C) barchan D) star 26) Rainshadow deserts are common in ________. A) vast, dry, steppe lands like the Great Plains B) north central Africa C) the dry valleys of eastern California and Nevada D) Europe north of the Alps 27) ________ dunes result from persistent, onshore winds in certain coastal areas. A) Diabolic B) Barchanoid C) Parabolic D) Staroid 28) ________ dunes are long, high, sand dunes parallel with the prevailing wind direction. A) Transducinal B) Longitudinal C) Latitudinal D) Transversal 29) Which one of the following is a low-latitude desert characterized by high atmospheric pressures and descending air masses (not rain shadow deserts). A) Sahara Desert; northern Africa B) Atacama Desert in Chile, South America C) Gobi Desert, China and Mongolia D) desert valleys of the Great Basin, United States Match the sand dune with the appropriate description. a. starb. barchanc. parabolicd. barchanoide. transversef. longitudinal 30) complexly shaped dunes formed in response to different, seasonal, wind directions 31) linear sand ridges at right angles to the prevailing wind direction 32) linear sand ridges parallel to the prevailing wind direction 33) multiple, connected, crescent-shaped coastal dunes with the tips pointing toward the beach 34) sand ridges at right angles to prevailing winds with crescent-shaped slip faces pointing downwind 35) single, crescent-shaped dune with the tips pointing downwind