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Review Quiz

  1. Surface ocean currents are driven by:
      a. the Earth's rotation
      b. density differences
      c. winds
      d. tides
      e. Poseidon
  2. The N. Pacific gyre causes the California Current to flow _____.
      a. from north to south
      b. from south to north
      c. warm water from Baja northward
      d. west to east
  3. With ocean currents along California and Peru moving towards lower latitudes, Ekman transport causes ________along the coast.
      a. warmer water to sink
      b. cool water to sink
      c. downwelling
      d. upwelling
  4. Deep ocean currents are driven by:
      a. winds
      b. Earth's rotation
      c. density differences
      d. bottom topography
  5. The densest (heaviest) water has:
      a. warm temperature, high salinity
      b. warm temperature, low salinity
      c. cold temperature, low salinity
  6. Freshest (low salinity) water would be found:
      a. in the subtropics
      b. in cooler, dry climates
      c. in warmer climates
      d. near glacier melt coastlines
  7. In normal years, the _____ region is the warmest portion of the equatorial Pacific Ocean.
      a. western
      b. eastern
      c. central
      d. entire
  8. During El ñino events, the ______ equatorial Pacific Ocean are unusually warm.
      a. western
      b. eastern and central
      c. western and central
      d. entire
  9. During La ñina events, the equatorial trade winds are:
      a. weaker than normal
      b. stronger than normal
      c. normal
  10. During strong El ñino events:
      a. there are droughts in Australia, Malaysia
      b. there are wet conditions in Peru
      c. there are wet conditions in the southern US
      d. all the above
  11. Upwelling and cold surface ocean currents occur generally along:
      a. mid-latitude west coasts of continents
      b. mid-latitude east coasts of continents
      c. both mid-latitude coasts of continents
      d. none of these
  12. The thermocline is a region:
      a. of warm surface water
      b. cold deep water
      c. of rapid change from warm to cold water
      d. none of these
  13. Deep ocean circulation, that often resembles a conveyor belt, is called:
      a. the thermocline
      b. the thermohaline circulation
      c. the circulation of the 7 seas
      d. pychnocline circulation
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