What is not a characteristic of western boundary currents? a. ...

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What is not a characteristic of western boundary currents?
  a. They move warm water poleward.
  b. They are fast moving currents.
  c. They are deep currents.
  d. They are broad currents.

Question 2

Where is density stratification the least pronounced?
  a. Temperate latitudes
  b. Polar latitudes
  c. Tropical latitudes
  d. Areas where there is upwelling

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Answer to Question 1

ANS: D
Western boundary currents are narrow, deep, and fast moving currents. They have clearly defined
boundaries. There are five large western boundary currents. Information can be found in the section
Surface Currents Are Driven by the Winds.

Answer to Question 2

ANS: B
Polar areas have smaller differences in temperature between the surface and deep water. The minimal
difference causes the density stratification to be less pronounced than tropical and temperate regions.
Information can be found in the section Thermohaline Circulation Affects All the Ocean's Water.

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