Question 1

Upwelling along the coast of Peru is very seasonal, due to the continually shifting wind patterns.

Accepted Answer

A) True 
 B)False

Question 2

A rapid change in salinity with depth is called a ________.

Accepted Answer

A)   halocline
B)   thermocline
C)   photic level
D)   midwater current
E)   pycnoclineF) B) and C)
G) C) and E)

Question 3

The Atlantic prevailing westerlies drive the ________.

Accepted Answer

A)   Gulf Stream and Canary currents
B)   North Atlantic and West Wind Drift
C)   Brazil and Benguela currents
D)   North and South Equatorial currents
E)   None of these is correct.F) C) and D)
G) B) and C)

Question 4

Deep-ocean water in the Atlantic Ocean flows mainly ________.

Accepted Answer

A)   east-west
B)   north-south
C)   to the right
D)   to the left
E)   None of these is correct; there is no deep-water flow.F) B) and D)
G) A) and E) B

Question 5

The thermocline found in water above 500 m at temperate latitudes disappears and the water column becomes neutral in ________.

Accepted Answer

A)   spring
B)   summer
C)   fall
D)   winter
E)   None of these is correct; it does not disappear.F) B) and D)
G) None of the above

Question 6

In an area where surface currents converge, the water upwells.

Accepted Answer

A) True 
 B)False

Question 7

The Indian Ocean gyre rotates counterclockwise.

Accepted Answer

A) True 
 B)False

Question 8

Of the major ocean gyres, cool currents are ________.

Accepted Answer

A)   eastern boundary currents
B)   western boundary currents
C)   equatorial currents
D)   northern boundary currents
E)   It depends on the ocean basin.F) A) and B)
G) B) and C)

Question 9

Downwelling is produced by diverging surface currents.

Accepted Answer

A) True 
 B)False

Question 10

The speed of the Florida current is high because ________.

Accepted Answer

A)   the winds are strong at this latitude
B)   the water has a high salinity
C)   the channel through which it flows is narrow
D)   the Coriolis effect is large
E)   None of these is correct; it is a slow current.F) All of the above
G) A) and D)

Question 11

The Arctic Ocean receives ________.

Accepted Answer

A)   North Atlantic water from the Labrador Current
B)   North Atlantic water from the Norwegian current
C)   North Pacific water through the Bering Strait
D)   North Atlantic water from the Labrador Current and North Atlantic water from the Norwegian current
E)   North Atlantic water from the Norwegian current and North Pacific water through the Bering StraitF) C) and D)
G) A) and E)

Question 12

In the oceans, the zone where density of water changes rapidly with depth is called a pycnocline.

Accepted Answer

A) True 
 B)False  True

Question 13

In which one of the following cases will coastal upwelling occur?

Accepted Answer

A)   Wind blowing from south to north along the Georgia coast
B)   Wind blowing from north to south along the Delaware coast
C)   Wind blowing from south to north along the Oregon coast
D)   Wind blowing from north to south along the South Carolina coast
E)   In none of these casesF) A) and D)
G) C) and D)

Question 14

Layering in the ocean occurs because ________.

Accepted Answer

A)   surface processes form water layers of differing combinations of salinity and temperature
B)   processes at depth add and subtract salt and heat
C)   atmospheric processes control conditions at the surface
D)   surface processes form water layers of differing combinations of salinity and temperature and atmospheric processes control conditions at the surface
E)   All of these choices are correct.F) B) and E)
G) C) and E)

Question 15

A convergence of water occurs at the eastern side of each of the main ocean basins as a result of Ekman transport.

Accepted Answer

A) True 
 B)False

Question 16

The large ocean surface-current gyres centered on about 30°N ________.

Accepted Answer

A)   rotate counterclockwise
B)   do not rotate
C)   have depressed surface elevations
D)   rotate clockwise
E)   alternate their direction of rotation with the seasonsF) D) and E)
G) None of the above D

Question 17

Which of the following currents is western intensified?

Accepted Answer

A)   California Current
B)   Gulf Stream
C)   West Wind Drift
D)   All of these are correct.
E)   None of these is correct.F) B) and D)
G) A) and D)

Question 18

Currents are more intense on the ________ side of the North Pacific and North Atlantic Oceans.

Accepted Answer

A)   northern
B)   southern
C)   eastern
D)   western
E)   None of these is correct; they are not more intense on one side.F) All of the above
G) A) and B)

Question 19

The Kuroshio is NOT ________.

Accepted Answer

A)   a western boundary current
B)   fast
C)   deep
D)   cold
E)   narrowF) A) and B)
G) None of the above

Question 20

Eddies ________.

Accepted Answer

A)   persist for long periods of time
B)   mix water
C)   lost energy to turbulence
D)   stir up bottom sediments
E)   All of these are correct.F) B) and E)
G) B) and D)

Exam 7: Ocean Structure and Circulation

Upwelling along the coast of Peru is very seasonal, due to the continually shifting wind patterns.

Correct AnswerverifiedShow Answer

A rapid change in salinity with depth is called a ________.

Correct AnswerverifiedShow Answer

The Atlantic prevailing westerlies drive the ________.

Correct AnswerverifiedShow Answer

Deep-ocean water in the Atlantic Ocean flows mainly ________.

Correct AnswerverifiedB

The thermocline found in water above 500 m at temperate latitudes disappears and the water column becomes neutral in ________.

Correct AnswerverifiedShow Answer

In an area where surface currents converge, the water upwells.

Correct AnswerverifiedShow Answer

The Indian Ocean gyre rotates counterclockwise.

Correct AnswerverifiedShow Answer

Of the major ocean gyres, cool currents are ________.

Correct AnswerverifiedShow Answer

Downwelling is produced by diverging surface currents.

Correct AnswerverifiedShow Answer

The speed of the Florida current is high because ________.

Correct AnswerverifiedShow Answer

The Arctic Ocean receives ________.

Correct AnswerverifiedShow Answer

In the oceans, the zone where density of water changes rapidly with depth is called a pycnocline.

Correct AnswerverifiedTrue

In which one of the following cases will coastal upwelling occur?

Correct AnswerverifiedShow Answer

Layering in the ocean occurs because ________.

Correct AnswerverifiedShow Answer

A convergence of water occurs at the eastern side of each of the main ocean basins as a result of Ekman transport.

Correct AnswerverifiedShow Answer

The large ocean surface-current gyres centered on about 30°N ________.

Correct AnswerverifiedD

Which of the following currents is western intensified?

Correct AnswerverifiedShow Answer

Currents are more intense on the ________ side of the North Pacific and North Atlantic Oceans.

Correct AnswerverifiedShow Answer

The Kuroshio is NOT ________.

Correct AnswerverifiedShow Answer

Eddies ________.

Correct AnswerverifiedShow Answer

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B

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True

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D

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