Question 1

Upwelling has no influence on weather.

Accepted Answer

A) True 
 B)False

Question 2

The North Atlantic gyre is composed of the Gulf Stream, the North Atlantic Current, the Canary Current and the North Equatorial Current.

Accepted Answer

A) True 
 B)False

Question 3

Antarctic Bottom Water flows ____ water in surface currents.

Accepted Answer

A)  about the same speed as
B)  slightly faster than
C)  much faster than
D)  much slower thanE) None of the above
F) A) and B)

Question 4

Which statement is true with regard to thermohaline circulation?

Accepted Answer

A)  Thermohaline circulation is caused by even and steady global heating of the ocean.
B)  Thermohaline circulation is the result of heating of the ocean at high latitudes and cooling at low latitudes.
C)  Thermohaline circulation is driven by density gradients.
D)  Thermohaline circulation is primarily driven by wind.E) B) and C)
F) C) and D)

Question 5

How do scientists study currents?

Accepted Answer

Numerous methods exist to study currents...

Question 6

Thermohaline circulation is a ____ phenomenon.

Accepted Answer

A)  small-scale
B)  global
C)  local
D)  coastalE) None of the above
F) A) and B)

Question 7

One example of horizontal water movement is called downwelling.

Accepted Answer

A) True 
 B)False

Question 8

The Canary Current is an example of a ____.

Accepted Answer

A)  shallow, cold water current
B)  deep, cold water current
C)  warm, southerly current
D)  mesopelagic currentE) B) and C)
F) A) and C)

Question 9

The only ocean current that continues in an uninterrupted circle around the circumference of Earth without encountering land is the ____.

Accepted Answer

A)  Gulf Stream
B)  Kuroshio, or Japan, Current
C)  Antarctic Circumpolar Current
D)  Canary CurrentE) A) and D)
F) A) and C)

Question 10

Which of the following is an eastern boundary current?

Accepted Answer

A)  Canary Current
B)  Kuroship Current
C)  Gulf Stream
D)  North Equatorial CurrentE) C) and D)
F) A) and C)

Question 11

The mass flow of ocean water that is driven by wind or gravity is referred to as a(n) ____.

Accepted Answer

A)  wave
B)  ENSO event
C)  current
D)  tideE) B) and C)
F) A) and B)

Question 12

Equatorial upwelling occurs in westward-flowing equatorial surface currents.

Accepted Answer

A) True 
 B)False

Question 13

The Kuroshio Current is an example of an eastern boundary current.

Accepted Answer

A) True 
 B)False

Question 14

Describe how ocean currents affect the global distribution of heat and give an example of how they moderate climate.

Accepted Answer

Surface currents that move quickly acros...

Question 15

Currents tend to move in large ____ patterns in the Northern Hemisphere.

Accepted Answer

A)  irregular
B)  counterclockwise
C)  clockwise
D)  randomE) All of the above
F) A) and B)

Question 16

Ocean gyres are asymmetrical because of the Coriolis effect.

Accepted Answer

A) True 
 B)False

Question 17

Earth's rotation influences currents by a "force" known as ____.

Accepted Answer

A)  an Ekman spiral
B)  geostrophism
C)  the gyre counter rotation
D)  the Coriolis effectE) B) and D)
F) A) and B)

Question 18

Which of the following statements is true about an Ekman spiral?

Accepted Answer

A)  The net flow of a wind-driven surface current in the Northern Hemisphere will flow at about a 50 ° angle to the wind.
B)  With increasing depth, each layer will move faster than the overlying layer of water.
C)  Because of Ekman transport, at some friction depth, water will be moving in the opposite direction from the surface current.
D)  An Ekman spiral is not influenced by the Coriolis effect.E) A) and C)
F) A) and B)

Question 19

What is upwelling and why is it important for biological productivity?

Accepted Answer

As winds pull the water in horizontal mo...

Question 20

The Gulf Stream is a current that runs south along the eastern coast of the United States.

Accepted Answer

A) True 
 B)False

Exam 8: Ocean Circulation

The mass flow of ocean water that is driven by wind or gravity is referred to as a(n) ____.

Correct AnswerverifiedShow Answer

What is upwelling and why is it important for biological productivity?

Correct AnswerverifiedAs winds pull the water in horizontal mo...View AnswerShow Answer

The Gulf Stream is a current that runs south along the eastern coast of the United States.

Correct AnswerverifiedShow Answer

One example of horizontal water movement is called downwelling.

Correct AnswerverifiedShow Answer

Upwelling has no influence on weather.

Correct AnswerverifiedShow Answer

The Kuroshio Current is an example of an eastern boundary current.

Correct AnswerverifiedShow Answer

How do scientists study currents?

Correct AnswerverifiedNumerous methods exist to study currents...View AnswerShow Answer

Which of the following is an eastern boundary current?

Correct AnswerverifiedShow Answer

Antarctic Bottom Water flows ____ water in surface currents.

Correct AnswerverifiedShow Answer

Equatorial upwelling occurs in westward-flowing equatorial surface currents.

Correct AnswerverifiedShow Answer

Ocean gyres are asymmetrical because of the Coriolis effect.

Correct AnswerverifiedShow Answer

The only ocean current that continues in an uninterrupted circle around the circumference of Earth without encountering land is the ____.

Correct AnswerverifiedShow Answer

The North Atlantic gyre is composed of the Gulf Stream, the North Atlantic Current, the Canary Current and the North Equatorial Current.

Correct AnswerverifiedShow Answer

Describe how ocean currents affect the global distribution of heat and give an example of how they moderate climate.

Correct AnswerverifiedSurface currents that move quickly acros...View AnswerShow Answer

Earth's rotation influences currents by a "force" known as ____.

Correct AnswerverifiedShow Answer

Which of the following statements is true about an Ekman spiral?

Correct AnswerverifiedShow Answer

The Canary Current is an example of a ____.

Correct AnswerverifiedShow Answer

Currents tend to move in large ____ patterns in the Northern Hemisphere.

Correct AnswerverifiedShow Answer

Thermohaline circulation is a ____ phenomenon.

Correct AnswerverifiedShow Answer

Which statement is true with regard to thermohaline circulation?

Correct AnswerverifiedShow Answer

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As winds pull the water in horizontal mo...
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Numerous methods exist to study currents...
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Surface currents that move quickly acros...
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Correct Answer
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