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GEL 1006
OCEANOGRAPHY

Study Guide
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General Guidance:   The worksheet questions below cover the material we will discuss in class and on which you will be tested. Be thorough, it usually takes one or two paragraphs to completely answer the question. It is best to work on the questions as we cover the material; you should feel free to bring the questions up in class for discussion. Please answer the questions using complete sentences, and be sure to use proper spelling and grammar (worth 10%). The answers must be typed.

WORKSHEET 1
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  1. Why does the chart in Figure a on page 10 look so strange? (5 pts.)
  2. Which person or group of people described in Chapter 1 most impressed you with their ocean travels? Why? (5 pts.)
  3. Is an understanding of plate tectonics important to oceanography? Why or why not? (5 pts.)
  4. Describe the two pieces of evidence in favor of plate tectonics that you find the most compelling? Why are they so compelling? (10 pts.)
  5. Do you find any weaknesses in the theory of plate tectonics? What are they? (5 pts.)
  6. Draw an east-west cross-section of the Atlantic Ocean and label and describe the features. (10 pts.)
  7. Draw an east-west cross-section of the Pacific Ocean and label and describe the features. (10 pts.)

WORKSHEET 2
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  1. Describe the four sources of sediments and their characteristics? (12 pts.)
  2. What sediments accumulate most rapidly? Why? (6 pts.)
  3. What are three of the primary constituents of sea water, where did they come from, and what are their residence times? (6 pts.)
  4. Which dissolved gas is present in the ocean in greater proportion than in the atmosphere? What will happen if the ocean gets warmer? (6 pts.)
  5. Describe two reasons why water’s high heat capacity, latent heat of fusion, and latent heat of evaporation are important. (10 pts.)
  6. Do the oceans effect the climate of the LaSalle-Peru area? Why or why not? (10 pts.)

WORKSHEET 3
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  1. List two primary forces and one secondary force that act on ocean surface currents and explain their effect. (6 pts.)
  2. List two primary forces and one secondary force that act on deep ocean currents and explain their effect. (6 pts.)
  3. What is the equatorial counter-current, and what conditions allow it to occur? (4 pts.)
  4. List the four types of waves and explain their causes. (12 pts.)
  5. Why is it incorrect to call most large waves "tidal waves"? What might they really be? (6 pts.)
  6. Why is one of the two daily high tides usually higher than others? (6 pts.)
  7. Describe a coastal cell. (6 pts.)
  8. Describe two possible causes for world-wide sea level change. (4 pts.)

WORKSHEET 4
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  1. Discuss two abiotic factors that affect life in the ocean. (10 pts.)
  2. How does osmosis effect the design of life in the ocean? (5 pts.)
  3. Describe two adaptations that allow living organisms in the ocean to stay buoyant. (5 pts.)
  4. Describe some of the differences between seaweed (algae) and vascular (angiosperm) plants. (5 pts.)
  5. What factors lead to increased productivity in the ocean? (5 pts.)
  6. Describe some of the unique features of a hermatypic coral? (5 pts.)
  7. What is the carrying capacity and what happens as a population approaches it? (5 pts.)
  8. Design a new marine organism. (10 pts.) (DO IN CLASS)

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last updated: 01/06/08