Question 1

In the Northern Hemisphere, the water surface of the open ocean moves ________.

Accepted Answer

A)  at right angles to the wind 
B)  against the wind 
C)  parallel to the wind 
D)  45 degrees to the right of the wind 
E)  45 degrees to the left of the wind 
A)  at right angles to the wind 
B)  against the wind 
C)  parallel to the wind 
D)  45 degrees to the right of the wind 
E)  45 degrees to the left of the wind

Question 2

A zone of surface divergence is an area of ________ and ________ biological productivity.

Accepted Answer

A)  upwelling; high 
B)  upwelling; low 
C)  downwelling; high 
D)  downwelling; low 
E)  no vertical motion; average 
A)  upwelling; high 
B)  upwelling; low 
C)  downwelling; high 
D)  downwelling; low 
E)  no vertical motion; average

Question 3

Which current flows south along the west coast of the United States?

Accepted Answer

A)  North Pacific 
B)  California 
C)  Japanese 
D)  Gulf Stream 
E)  Kuroshio 
A)  North Pacific 
B)  California 
C)  Japanese 
D)  Gulf Stream 
E)  Kuroshio

Question 4

A surface gyre system in the Southern Hemisphere ________.

Accepted Answer

A)  promotes upwelling and surface depression if it rotates clockwise 
B)  promotes upwelling and surface elevation if it rotates counterclockwise 
C)  retards upwelling and decreases surface elevation if rotating counterclockwise 
D)  retards upwelling and increases surface elevation if rotating counterclockwise 
E)  Rotation in either direction does not affect upwelling. 
A)  promotes upwelling and surface depression if it rotates clockwise 
B)  promotes upwelling and surface elevation if it rotates counterclockwise 
C)  retards upwelling and decreases surface elevation if rotating counterclockwise 
D)  retards upwelling and increases surface elevation if rotating counterclockwise 
E)  Rotation in either direction does not affect upwelling.

Question 5

Isothermal water is stable and does not overturn.

Accepted Answer

A) True 
 B)False

Question 6

North Atlantic deep water ________.

Accepted Answer

A)  flows to the south 
B)  rises toward the surface in the Southern Ocean 
C)  is formed off Labrador 
D)  All of these are correct. 
E)  None of these is correct. 
A)  flows to the south 
B)  rises toward the surface in the Southern Ocean 
C)  is formed off Labrador 
D)  All of these are correct. 
E)  None of these is correct.

Question 7

Meanders in the Gulf Stream current can pinch off to form warm and cold core ________.

Accepted Answer

The answer of Meanders in the Gulf Stream current can...

Question 8

If two surface water types with the same density but different salinities and temperatures mix, the resulting water will be ________.

Accepted Answer

A)  denser than both parent types 
B)  less dense than both parent types 
C)  denser than the more dense parent type 
D)  less dense than the less dense parent type 
E)  the same density as the parent types 
A)  denser than both parent types 
B)  less dense than both parent types 
C)  denser than the more dense parent type 
D)  less dense than the less dense parent type 
E)  the same density as the parent types

Question 9

The North Atlantic current is produced by the ________.

Accepted Answer

A)  northeast trade winds 
B)  southeast trade winds 
C)  prevailing westerlies 
D)  polar easterlies 
E)  seasonal monsoon 
A)  northeast trade winds 
B)  southeast trade winds 
C)  prevailing westerlies 
D)  polar easterlies 
E)  seasonal monsoon

Question 10

The current at the eastern boundary of the Sargasso Sea is the ________ Current.

Accepted Answer

A)  Gulf Stream 
B)  North Equatorial 
C)  Canary 
D)  Greenland 
E)  Labrador 
A)  Gulf Stream 
B)  North Equatorial 
C)  Canary 
D)  Greenland 
E)  Labrador

Question 11

A water type having both high salinity and warm temperature but dense enough to be found at about 1000 m in the central North Atlantic has been formed ________.

Accepted Answer

A)  in equatorial regions 
B)  in the Red Sea 
C)  in the Mediterranean Sea 
D)  near Greenland 
E)  in the Caribbean Sea 
A)  in equatorial regions 
B)  in the Red Sea 
C)  in the Mediterranean Sea 
D)  near Greenland 
E)  in the Caribbean Sea

Question 12

Wind-driven surface water moves in a complex manner as a function of depth. This is called the ________.

Accepted Answer

The answer of Wind-driven surface water moves in a complex...

Question 13

Prevailing westerly winds cause easterly currents.

Accepted Answer

A) True 
 B)False

Question 14

Increasing salinity increases density.

Accepted Answer

A) True 
 B)False

Question 15

The single most important source of deep water to all of the world's oceans is ________.

Accepted Answer

A)  downwelling in the North Atlantic 
B)  Antarctic intermediate water 
C)  subduction in all oceans 
D)  the Peru current along the South American coast 
E)  Antarctic intermediate water and the Peru current along the South American coast 
A)  downwelling in the North Atlantic 
B)  Antarctic intermediate water 
C)  subduction in all oceans 
D)  the Peru current along the South American coast 
E)  Antarctic intermediate water and the Peru current along the South American coast

Question 16

A rapid change in temperature 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 17

Which of the following is NOT true about the influence of Ekman transport on surface currents?

Accepted Answer

A)  The effect extends to a depth of approximately 100 to 150 m below sea level. 
B)  The average flow of water is 90 degrees to the direction of wind. 
C)  Each subsequent layer of water moves more quickly than the one above it. 
D)  Surface waters move 45 degrees to the direction of wind. 
E)  All of these statements are true. 
A)  The effect extends to a depth of approximately 100 to 150 m below sea level. 
B)  The average flow of water is 90 degrees to the direction of wind. 
C)  Each subsequent layer of water moves more quickly than the one above it. 
D)  Surface waters move 45 degrees to the direction of wind. 
E)  All of these statements are true.

Question 18

A good example of thermohaline circulation is found ________.

Accepted Answer

A)  in equatorial regions 
B)  in the central South Pacific 
C)  close to Antarctica 
D)  along the east coast of the United States 
E)  in the Gulf of Mexico 
A)  in equatorial regions 
B)  in the central South Pacific 
C)  close to Antarctica 
D)  along the east coast of the United States 
E)  in the Gulf of Mexico

Question 19

The pycnocline is an area where temperature changes rapidly with depth.

Accepted Answer

A) True 
 B)False

Question 20

The pycnocline of the oceans is usually found at depths exceeding 2000 m.

Accepted Answer

A) True 
 B)False

In the Northern Hemisphere, the water surface of the open ocean moves ________.

A zone of surface divergence is an area of and biological productivity.

Which current flows south along the west coast of the United States?

A surface gyre system in the Southern Hemisphere ________.

Isothermal water is stable and does not overturn.

North Atlantic deep water ________.

Meanders in the Gulf Stream current can pinch off to form warm and cold core ________.

If two surface water types with the same density but different salinities and temperatures mix, the resulting water will be ________.

The North Atlantic current is produced by the ________.

The current at the eastern boundary of the Sargasso Sea is the ________ Current.

A water type having both high salinity and warm temperature but dense enough to be found at about 1000 m in the central North Atlantic has been formed ________.

Wind-driven surface water moves in a complex manner as a function of depth. This is called the ________.

Prevailing westerly winds cause easterly currents.

Increasing salinity increases density.

The single most important source of deep water to all of the world's oceans is ________.

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

Which of the following is NOT true about the influence of Ekman transport on surface currents?

A good example of thermohaline circulation is found ________.

The pycnocline is an area where temperature changes rapidly with depth.

The pycnocline of the oceans is usually found at depths exceeding 2000 m.

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

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Exam 7: Ocean Structure and Circulation

In the Northern Hemisphere, the water surface of the open ocean moves ________.

A zone of surface divergence is an area of ________ and ________ biological productivity.

Which current flows south along the west coast of the United States?

A surface gyre system in the Southern Hemisphere ________.

Isothermal water is stable and does not overturn.

North Atlantic deep water ________.

Meanders in the Gulf Stream current can pinch off to form warm and cold core ________.

If two surface water types with the same density but different salinities and temperatures mix, the resulting water will be ________.

The North Atlantic current is produced by the ________.

The current at the eastern boundary of the Sargasso Sea is the ________ Current.

A water type having both high salinity and warm temperature but dense enough to be found at about 1000 m in the central North Atlantic has been formed ________.

Wind-driven surface water moves in a complex manner as a function of depth. This is called the ________.

Prevailing westerly winds cause easterly currents.

Increasing salinity increases density.

The single most important source of deep water to all of the world's oceans is ________.

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

Which of the following is NOT true about the influence of Ekman transport on surface currents?

A good example of thermohaline circulation is found ________.

The pycnocline is an area where temperature changes rapidly with depth.

The pycnocline of the oceans is usually found at depths exceeding 2000 m.

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

A zone of surface divergence is an area of and biological productivity.