SO262, Physical Geography

Exam 2, Fall 2012

 

 

Definitions (1 sentence, choose 10/12))	10@ 3 points each	30
Diagrams	7@ 10 points each
Total		100

 

Read the directions carefully.  You have a selection of questions for the definitions, and the short answers.

 

Quality of your answers is important.   For full credit you should use correct terminology, and show that you understand the concepts involved.

 

All work on this exam is individual.  You may not any materials (books, notes, computers), and you may not use IM, texting, talking, or any other means to communicate with other individuals.

 

 

 Red comments are not complete answers, but key points that many students missed and were used for post test review.

 

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Definitions:  define 10 of the 12 terms with a concise sentence that clearly shows your understanding of the term, and why it is relevant in physical geography:  Each is worth 3 points.

 

1.       Angle of repose: loose sediment

2.      Braided stream:  lots sediment

3.      Creep:  8/15 skips

4.      Folding:

5.      Igneous rock:

6.      Karst topography:

7.      Mercalli intensity:

8.      Mesothermal climate:

9.      Normal fault:

10.  Radial drainage pattern:  6/15 skips

11.  Steppe:

12.  Talus slope:  5/15 skips

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Answer all of the next 7 questions, for 10 points each:

 

 

1.  The diagram above shows two volcanoes (A and B) and a nearby climograph.  Note that the scales of the two volcanoes, and the vertical exaggerations are very different.

 

• There are two types of weathering.  Differentiate them, and indicate which type you think would dominate each volcano and why.

Physical and chemical.  Hot and wet favors chemical.

 

• What is the difference between the two volcanoes?

 

 

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2.  You live on the coast near location A.  This is Peru on the west side of South America

 

• What kind of continental margin is this, and how could you tell?   Active/Pacific type

 

 

• Is there a plate boundary nearby, and how could you tell?  subduction zone

  

• List 4 natural disasters that would occur because of this location. Earthquakes, tsunamis, volcanoes, mass movement

  

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3.  The two climographs below come for nearby locations on the same continent.

 

• What continent(s) might this be, and why?  southern Hemisphere

  

• What climate category are these two locations?  C or mesothermal

 

• Approximately what latitude do you think this might be, and why? About 55S to be cool, but water moderated so very small range over the year.

 

• What factor might account for the differences in both precipitation and temperature range between the two locations, and why do you say this?  Slightly different proximity to coastal moderation and moist air

 

 

 

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4.  The diagram below the longitudinal profile of a major river. 

 

• Why does the profile have the shape it does?

 

• What happens at point A in the profile?

 

 

·         The two climographs below are about 500 km apart on either side of  mouth of the river above.  What single factor could account for the difference in both precipitation and temperature?  Why? sElevation (rising air cools and orographic precipitation)

 

 

 

 

·         Where do you think the river is located, and why?  India/Bangladesh due to monsoon

 

 

 

5         The image above is part of the same river.  At what distance along the profile could this be, and what is going on at this location?  Why does this happen?

 

 

6         Describe the processes going on at points A and B in the satellite image above, which is on the image in the last question.  If you came back at a later point in time, what might you see at this location?

 

 

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7.  The picture below from Wikipedia/Wikimedia is a hoodoo (a term we have not discussed).  Based on what you see in the picture, write a definition of a hoodoo which focuses on what it is and what conditions cause it.

 

 

 

 

 

 

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 These are the climographs used above, with the location indicated.

 

 

 

 

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Map showing the location of the river, and the two climograph stations on either side of the mouth.

 

 

 

 

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