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Homework answers / question archive / University of California, Los Angeles - GEOG 116 1)In textbook section 19

University of California, Los Angeles - GEOG 116 1)In textbook section 19

Geography

University of California, Los Angeles - GEOG 116

1)In textbook section 19.1, you learned that there are multiple reasons for land to be dry. Examine the first stop on the Google Earth tour, the Patagonian desert, and assess which of the following causes is likely to the the reason that southern Argentina is so dry.

 

 

2) Same sort of question as #1: It's time to assess another desert and determine its reason for existing. Examine the second stop on the Google Earth tour, the Sahara desert, and assess which of the following causes is likely to the the reason that northern Africa and the Arabian Peninsula are so dry.

 

 

  1. Click the next stop on the tour - "Badwater, Death Valley." Hover your cursor over various points in the area, and find the lowest elevation. Elevation at the point of the cursor is shown in the data bar on the bottom of the Google Earth screen, toward the right side. What is the elevation

of Badwater? Express your answer in feet.

 

 

  1. Examine Landform "A" (three examples are provided in Death Valley, each outlined in yellow). What landform is this?

 

  1. Examine Landform "B" (it is outlined in orange). What landform is this?

 

 

 

 

  1. Considering that the mountains flanking Death Valley to the east and west are about the same size as each other, how to you explain the difference in landforms (your answers to the previous two questions) on either side of Death Valley?

 

 

7) Examine the next two stops on the Google Earth tour: The "barchan dunes" and the "parabolic dunes" in White Sands National Monument, in New Mexico. Which way is the wind blowing in this region?

 

 

  1. Measure the distance between the two placemarks for "barchan dunes" and "parabolic dunes" in the White Sands National Monument region. (The measurement tool in Google Earth is at the top - it looks like a small ruler icon.) How far apart are they?

 

 

  1. Considering this distance (i.e., your answer to #8 above), what variable is most likely responsible for the change in dune type over such a short distance?

 

 

 

  1. Enter the GigaPan that's the next item on the Google Earth tour. Explore it - it's full resolution. What's the name given to the flat white landform on the right side of the image?

 

 

  1. Compare the two alluvial fans outlined in purple in the northern Owens Valley (11A and 11B). They are different colors. Why?

 

 

 

12 part I) Explore the GigaPan at site 12 (Zion Canyon, Utah) and identify the sedimentary structures in the cliffs at the right. The sedimentary structures seen there are            

 

 

 

12 part II) Examine each of the placemarks following the sedimentary structure GigaPan. Which of these four settings is most likely the sort of environment where the sedimentary structure you identified in the previous question would have formed?

 

  1. What kind of dune is seen at the next stop on the tour?

 

 

 

 

  1. Examine Landform "C" (outlined in yellow). What landform is this?

 

 

 

  1. Compare and contrast the tectonics of the Zagros Mountains of Iran and the Basin and Range province of Utah. Representative samples of the landscape of both sites are outlined in blue as the next two stops on the tour. How did they form?

 

 

 

  1. Examine the Aral Sea using the "history" slider at the top. Click the icon/button that looks like a clock with an arrow draped over it. Slide the bar all the way to the left, and then to various positions in time, going to the right. What happens to the size of the Aral Sea over the past 40 years?

 

 

 

  1. Visit the Dead Sea next. This is the last stop on our Desert Tour. What is the elevation of the Dead Sea?

 

 

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