Question 1

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. 
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. B

Question 2

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 3

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 seasons 
A)  rotate counterclockwise 
B)  do not rotate 
C)  have depressed surface elevations 
D)  rotate clockwise 
E)  alternate their direction of rotation with the seasons D

Question 4

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

Accepted Answer

A)  halocline 
B)  thermocline 
C)  photic level 
D)  midwater current 
E)  pycnocline 
A)  halocline 
B)  thermocline 
C)  photic level 
D)  midwater current 
E)  pycnocline

Question 5

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

Question 6

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 Strait 
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 Strait

Question 7

Downwelling is produced by diverging surface currents.

Accepted Answer

A) True 
 B)False

Question 8

The Indian Ocean gyre rotates counterclockwise.

Accepted Answer

A) True 
 B)False

Question 9

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. 
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.

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. 
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.

Question 11

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. 
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.

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

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

Question 15

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 cases 
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 cases

Question 16

The Kuroshio is NOT ________.

Accepted Answer

A)  a western boundary current 
B)  fast 
C)  deep 
D)  cold 
E)  narrow 
A)  a western boundary current 
B)  fast 
C)  deep 
D)  cold 
E)  narrow

Question 17

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

Question 18

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 19

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. 
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.

Question 20

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

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

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

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

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

Which of the following currents is western intensified?

The Arctic Ocean receives ________.

Downwelling is produced by diverging surface currents.

The Indian Ocean gyre rotates counterclockwise.

Layering in the ocean occurs because ________.

The speed of the Florida current is high because ________.

The Atlantic prevailing westerlies drive the ________.

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

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

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

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

The Kuroshio is NOT ________.

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

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

Eddies ________.

Of the major ocean gyres, cool currents are ________.

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Exam 7: Ocean Structure and Circulation

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

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

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

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

Which of the following currents is western intensified?

The Arctic Ocean receives ________.

Downwelling is produced by diverging surface currents.

The Indian Ocean gyre rotates counterclockwise.

Layering in the ocean occurs because ________.

The speed of the Florida current is high because ________.

The Atlantic prevailing westerlies drive the ________.

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

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

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

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

The Kuroshio is NOT ________.

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

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

Eddies ________.

Of the major ocean gyres, cool currents are ________.

The Water Planet

Earth Structure and Plate Tectonics

The Sea Floor and Its Sediments

The Physical Properties of Water

The Chemistry of Seawater

The Atmosphere and the Oceans

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Productivity, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Filters