EARTH: AN INTRODUCTION TO PHYSICAL GEOLOGY

Chapter 19: Deserts and Winds

Chapter Test


Select the most appropriate response for each of the following questions.

1. Approximately what percent of Earth's land area is occupied by dry regions?  

2. The differences between desert and steppe climatic types are primarily a matter of degree.  
 
3. A semiarid region that often surrounds a desert is called a(n) __________.  

4. Running water, although infrequent, nevertheless does most of the erosional work in deserts.  
 
5. Most middle-latitude deserts are located where they are because __________.  

6. Mountain ranges may block precipitation from reaching certain areas, thereby creating __________.  

7. The locations of low-latitude deserts coincide with __________.  

8. Desert floods arrive suddenly and subside quickly.  
 
9. Less weathering occurs in deserts because __________.  

10. Streams that carry water only in response to specific episodes of rainfall are referred to as __________ streams.  

11. Which of the following processes is responsible for most of the erosion in deserts?  

12. All the following except __________ are desert land features created by water.  

13. Which one of the following constitutes most of the bed load carried by wind?  

14. The most notable results of deflation in some places are shallow depressions called blowouts.  
 
15. Which type of desert erosion involves the lifting and removal of loose material?  

16. "Loess" is best described by which of the following statements?  

17. Low-latitude deserts are located near which major lines of latitude?  

18. Which of the following is a low-latitude desert?  

19. In which of the following locations would a rainshadow desert most likely be found?  

20. Mud cracks (National Park Service)

What type of desert feature is the person shown in the photograph standing in?  

21. Due to its combination of flat desert basins lying between mountain chains, much of the southwestern United States is referred to as the Basin and Range region. Which one of the following desert features is very common where a stream leaving the base of a mountain range meets an interior basin?  

22. Mount Uluru (formerly Ayers Rock), Australia, is an example of what type of desert feature?  

Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
 




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