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Bio Oce Final

  1.  
    A cross-section of Earth reveals a layered structure that has different thicknesses and densities. How do geologists know this?
    A. Ice sheets B. Sediment C. Electromagnetic fields D. From observing the transit times
  2.  
    Earth surface winds are caused by air moving from
    A. The Westerlies B. Low Pressure Areas C. High pressure to low pressure
  3.  
    Geostrophic currents result from
    A. Balance between gravity and Coriolis effect B. Ocean circulation C. Westerlies
  4.  
    Ocean salinity is on average_____. Salinity is______ than average at the equator because of_______.
    A. 35; lower;precipitation B. 20;higher;runoff C. 35;higher;precipitation D. 45;lower;groundwater
  5.  
    The atmosphere of the earth consists primarily of
    A. oxygen and nitrogen B. oxygen and hydrogen C. oxygen and phosphorus D. nitrogen and sulfur
  6.  
    The deepest of ocean waters are classified as
    A. Twilight Zone B. Abyssal C. Photic D. Hadal E. Thermocline
  7.  
    The main driving forces of ocean circulation
    A. Wind and precipitation, gravity and temperature B. Temp and wind, gravity and wind, salinity and temp C. Salinity and gravity, Wind and temp
Answer Key
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Bio Oce Final (Answer Key)

  1.  
    A cross-section of Earth reveals a layered structure that has different thicknesses and densities. How do geologists know this?
    A. Ice sheets B. Sediment C. Electromagnetic fields D. From observing the transit times
  2.  
    Earth surface winds are caused by air moving from
    A. The Westerlies B. Low Pressure Areas C. High pressure to low pressure
  3.  
    Geostrophic currents result from
    A. Balance between gravity and Coriolis effect B. Ocean circulation C. Westerlies
  4.  
    Ocean salinity is on average_____. Salinity is______ than average at the equator because of_______.
    A. 35; lower;precipitation B. 20;higher;runoff C. 35;higher;precipitation D. 45;lower;groundwater
  5.  
    The atmosphere of the earth consists primarily of
    A. oxygen and nitrogen B. oxygen and hydrogen C. oxygen and phosphorus D. nitrogen and sulfur
  6.  
    The deepest of ocean waters are classified as
    A. Twilight Zone B. Abyssal C. Photic D. Hadal E. Thermocline
  7.  
    The main driving forces of ocean circulation
    A. Wind and precipitation, gravity and temperature B. Temp and wind, gravity and wind, salinity and temp C. Salinity and gravity, Wind and temp

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