Oceanography Chapter 4 Baker OCC

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jsfreaky
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290961
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Oceanography Chapter 4 Baker OCC
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2014-12-07 20:57:39
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Oceanography Chapter4 Baker OCC
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Oceanography Chapter 4 Baker OCC
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  1. 1_____ is the discovery and study of the ocean floor contours.
    A. None of the choices
    B. Oceanography
    C. Bathyscapology
    D. Bathymetry
    E. Topography
    D. Bathymetry
    (this multiple choice question has been scrambled)
  2. 2Researchers using depth sounder tracks had painstakingly compiled the first comprehensive charts of the ocean floor by 1959.
    True
    False
    True
  3. 3The continental lithosphere _____ density than oceanic lithosphere.
    A. is the same
    B. none of the choices as it depends on where you are
    C. has a higher
    D. has a lower
    D. has a lower
    (this multiple choice question has been scrambled)
  4. 4The continental margin is the submerged outer edge of a continent.
    True
    False
    True
  5. 5Continental margins facing the edges of _____ plates are called _____ because relatively little earthquake or volcanic activity is now associated with them.
    A. diverging; active margins
    B. converging; active margins
    C. diverging; passive margins
    D. converging; passive margins
    C. diverging; passive margins
    (this multiple choice question has been scrambled)
  6. 6The passive-margin shelves of the Atlantic Ocean formed as the fragments of Pangaea were carried away from each other by seafloor spreading.
    True
    False
    True
  7. 7Passive margins are also known as:
    A. Hot spot margins
    B. Pacific type margins
    C. Island arc margins
    D. Atlantic type margins
    D. Atlantic type margins
    (this multiple choice question has been scrambled)
  8. 8Active margins are also known as "Island Arc" margins.
    True
    False
    False
  9. 9_____ shelves have more varied topography than _____ shelves.
    A. Active-margin; passive-margin
    B. Passive-margin; active-margin
    C. Atlantic type; Pacific type
    D. Continental; oceanic
    A. Active-margin; passive-margin
    (this multiple choice question has been scrambled)
  10. 10Sediment liquefaction and local landslides that are triggered by earthquakes sometimes cause an abrasive underwater “avalanche” of sediments; this is referred to as turbidity currents.
    True
    False
    True
  11. 11The Mid-Atlantic Ridge runs along a straight line course bisecting the Atlantic ocean.
    True
    False
    False
  12. 12Abyssal plains and abyssal hills make up a _____ of Earth’s surface.
    A. third
    B. quarter
    C. half
    D. fifth
    B. quarter
    (this multiple choice question has been scrambled)
  13. 13_____ are flat-topped seamounts that once were tall enough to approach or penetrate the sea surface.
    A. Seamounts
    B. Ridges
    C. Guyots
    D. Abyssal hills
    C. Guyots
    (this multiple choice question has been scrambled)
  14. 14Basins are among the most active geological features on Earth.
    True
    False
    False
  15. 15The Aleutian Islands are considered to be
    A. Abyssal Hills
    B. formed along a passive margins
    C. Seamounts
    D. Island arcs
    D. Island arcs
    (this multiple choice question has been scrambled)
  16. 16The deepest trench is the world ocean is the:
    A. Java Trench
    B. Aleutian Trench
    C. Mariana Trench
    D. Peru-Chile Trench
    C. Mariana Trench
    (this multiple choice question has been scrambled)
  17. 17Which of the following statements about trenches is false?
    A. They are often form an extensive continental rise.
    B. They occur where a converging oceanic plate is being subducted.
    C. They are the sources of many great earthquakes and tsunami.
    D. They are the deepest places in Earth’s crust.
    A. They are often form an extensive continental rise.
    (this multiple choice question has been scrambled)

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