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20 Matching questions

  1. Rainshadow deserts are common in ________.
  2. Deposition of glacial rock flour from blowing winds is responsible for ________.
  3. Which of the following best describes the climatic factors that cause low latitude deserts like the Sahara in Africa?
  4. Inselbergs are ________.
  5. Assume that the central slip face of a barchan dune slopes downhill toward the east. What is the direction of the prevailing wind?
  6. ________ refers to the "bouncing" mode of sand transport in a windstorm or stream.
  7. Which of the following characteristics would suggest geologically recent, fault uplift of a desert mountain range?
  8. Which one of the following statements is correct?
  9. Which one of the following is the one best measure of the wetness or dryness of a region?
  10. During a typical sandstorm, saltating sand grains reach a maximum height of ________ above the land surface.
  11. A ________ is an intermittent stream channel in the dry land areas of the western United States.
  12. A ________ is a crescent-shaped dune whose tips point downwind.
  13. How are sand grains transported by the wind?
  14. A ________ is formed by abrasion of rocks by windblown sand.
  15. Most dry lands lie between ________ degrees north and south of the equator.
  16. Loess deposits in the central United States ________.
  17. Desert and steppe lands cover about what percentage of Earth's land area?
  18. How is desert pavement formed?
  19. ________ have rainfall amounts and soil moisture contents between those of true deserts and humid lands.
  20. Which one of the following will effectively limit further deflation in a given area?
  1. a Steppes
  2. b 30%
  3. c loess deposits
  4. d Cool, dry air aloft is descending; surface winds are blowing toward the equator.
  5. e bedrock hills in a highly eroded desert landscape
  6. f Runoff and deflation carry off the silt and clay, leaving coarser particles behind.
  7. g Saltation
  8. h wash
  9. i flat, upland surfaces, steep slopes and small alluvial fans
  10. j the dry valleys of eastern California and Nevada
  11. k Alluvial fans typically rim desert valleys; playas form in the lowest, interior parts of the valleys.
  12. l by saltation in the first few meters above the land surface
  13. m difference between annual precipitation and evaporation potential
  14. n ventifact
  15. o 2 meters
  16. p west to east
  17. q barchan
  18. r 20 and 30
  19. s originated as rock flour in Pleistocene glacial streams and rivers
  20. t desert pavement