Question 1

What offsets the mid-Atlantic ridge's movement at fairly regular intervals?

Accepted Answer

A)  Hydrothermal vents 
B)  Cooling lithosphere 
C)  Transform faults 
D)  Seamounts 
A)  Hydrothermal vents 
B)  Cooling lithosphere 
C)  Transform faults 
D)  Seamounts

Question 2

What is a Pacific-type margin referring to?

Accepted Answer

A)  Diverging plate boundary 
B)  Passive margin 
C)  Active margin 
D)  Rift valley 
A)  Diverging plate boundary 
B)  Passive margin 
C)  Active margin 
D)  Rift valley

Question 3

What is not a general characteristic of an active margin?

Accepted Answer

A)  A broad shelf 
B)  Faulting and volcanism 
C)  Varied topography 
D)  Little sedimentation 
A)  A broad shelf 
B)  Faulting and volcanism 
C)  Varied topography 
D)  Little sedimentation

Question 4

The submerged outer edge of a continent is called:

Accepted Answer

A)  a continental shelf 
B)  a continental margin 
C)  an active margin 
D)  a continental rise 
A)  a continental shelf 
B)  a continental margin 
C)  an active margin 
D)  a continental rise

Question 5

What vessel made the first continuous profile across the ocean?

Accepted Answer

A)  USS Stewart 
B)  HMS Challenger 
C)  Meteor 
D)  Mars Reconnaissance Orbiter 
A)  USS Stewart 
B)  HMS Challenger 
C)  Meteor 
D)  Mars Reconnaissance Orbiter

Question 6

What was not a factor in making the mapping of the Earth's ocean more difficult?

Accepted Answer

A)  The water covering our planet 
B)  The clouds in the atmosphere 
C)  Technology to measure depths 
D)  The gravitational pull of underwater features 
A)  The water covering our planet 
B)  The clouds in the atmosphere 
C)  Technology to measure depths 
D)  The gravitational pull of underwater features

Question 7

Describe what trenches and island arcs are. Why are these features linked with large earthquakes and tsunamis?

Accepted Answer

Answer should include:
•	Trenches are ar

Question 8

Describe how submarine canyons are formed? Where are they formed? How have past ice ages affected the formation of submarine canyons?

Accepted Answer

Answer should include:
•	Submarine canyo

Question 9

Continental rises are found along active margins due to the variation in topography.

Accepted Answer

A) True 
 B)False

Question 10

Fracture zones are seismically inactive areas that show evidence of past transform fault activity.

Accepted Answer

A) True 
 B)False

Question 11

What is a hydrothermal vent? What process is involved in their making? Who is responsible for discovering these vents?

Accepted Answer

Answer should include:
•	Hydrothermal ve

Question 12

Trenches are often the originators of large earthquakes and tsunamis.

Accepted Answer

A) True 
 B)False

Question 13

What is not thought to have an effect on the formation of submarine canyons?

Accepted Answer

A)  The sea level 
B)  Turbidity currents 
C)  Earthquakes 
D)  Geothermal heating 
A)  The sea level 
B)  Turbidity currents 
C)  Earthquakes 
D)  Geothermal heating

Question 14

What is a characteristic of transform faults?

Accepted Answer

A)  They are fractures along two plates that slide vertically. 
B)  They move in opposite directions, horizontally of each other. 
C)  They are just as active as fracture zones. 
D)  All of these choices are true. 
A)  They are fractures along two plates that slide vertically. 
B)  They move in opposite directions, horizontally of each other. 
C)  They are just as active as fracture zones. 
D)  All of these choices are true.

Question 15

What is a characteristic of the water that is expelled from hydrothermal vents?

Accepted Answer

A)  The water is colder than when entering the vent 
B)  The water is enriched with metals. 
C)  The water has higher concentrations of organic material 
D)  The water has lower concentrations of dissolved gases 
A)  The water is colder than when entering the vent 
B)  The water is enriched with metals. 
C)  The water has higher concentrations of organic material 
D)  The water has lower concentrations of dissolved gases

Question 16

Satellites use ____ to calculate the depths of the ocean.

Accepted Answer

A)  variations in elevation of surface water 
B)  multibeam echo sounding 
C)  radiometrics 
D)  variations in ocean density 
A)  variations in elevation of surface water 
B)  multibeam echo sounding 
C)  radiometrics 
D)  variations in ocean density

Question 17

John Murray was an oceanographer who sailed on the HMS Challenger between 1872 and 1876 and he completed the following

Accepted Answer

A)  Edited 50 volumes that resulted from the HMS Challenger expedition 
B)  Used satellites to pinpoint his position along his expedition 
C)  Discovered deep sea vents 
D)  Provide evidence of chemosynthesis 
A)  Edited 50 volumes that resulted from the HMS Challenger expedition 
B)  Used satellites to pinpoint his position along his expedition 
C)  Discovered deep sea vents 
D)  Provide evidence of chemosynthesis

Question 18

What is the flatness of abyssal plains associated with?

Accepted Answer

A)  The large amounts of sediment 
B)  The depth of abyssal plains 
C)  The pressure above the abyssal plains 
D)  The lack of sediment 
A)  The large amounts of sediment 
B)  The depth of abyssal plains 
C)  The pressure above the abyssal plains 
D)  The lack of sediment

Question 19

What specifically connects the continental shelves to the deep-ocean floor?

Accepted Answer

A)  Continental rise 
B)  Continental slope 
C)  Shelf break 
D)  Submarine canyon 
A)  Continental rise 
B)  Continental slope 
C)  Shelf break 
D)  Submarine canyon

Question 20

What is considered an important factor in shaping western boundary continental rises?

Accepted Answer

A)  Turbidity currents 
B)  The width of the shelf slope 
C)  Erosion rates 
D)  Deep-ocean currents 
A)  Turbidity currents 
B)  The width of the shelf slope 
C)  Erosion rates 
D)  Deep-ocean currents

What offsets the mid-Atlantic ridge's movement at fairly regular intervals?

What is a Pacific-type margin referring to?

What is not a general characteristic of an active margin?

The submerged outer edge of a continent is called:

What vessel made the first continuous profile across the ocean?

What was not a factor in making the mapping of the Earth's ocean more difficult?

Describe what trenches and island arcs are. Why are these features linked with large earthquakes and tsunamis?

Describe how submarine canyons are formed? Where are they formed? How have past ice ages affected the formation of submarine canyons?

Continental rises are found along active margins due to the variation in topography.

Fracture zones are seismically inactive areas that show evidence of past transform fault activity.

What is a hydrothermal vent? What process is involved in their making? Who is responsible for discovering these vents?

Trenches are often the originators of large earthquakes and tsunamis.

What is not thought to have an effect on the formation of submarine canyons?

What is a characteristic of transform faults?

What is a characteristic of the water that is expelled from hydrothermal vents?

Satellites use ____ to calculate the depths of the ocean.

John Murray was an oceanographer who sailed on the HMS Challenger between 1872 and 1876 and he completed the following

What is the flatness of abyssal plains associated with?

What specifically connects the continental shelves to the deep-ocean floor?

What is considered an important factor in shaping western boundary continental rises?

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Sediments

Water and Ocean Structure

Ocean Chemistry

Circulation of the Atmosphere

Circulation of the Ocean

Waves

Tides

Coasts

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Communities

Marine Resources

The Ocean and The Environment

Filters

Exam 4: Ocean Basins

What offsets the mid-Atlantic ridge's movement at fairly regular intervals?

What is a Pacific-type margin referring to?

What is not a general characteristic of an active margin?

The submerged outer edge of a continent is called:

What vessel made the first continuous profile across the ocean?

What was not a factor in making the mapping of the Earth's ocean more difficult?

Describe what trenches and island arcs are. Why are these features linked with large earthquakes and tsunamis?

Describe how submarine canyons are formed? Where are they formed? How have past ice ages affected the formation of submarine canyons?

Continental rises are found along active margins due to the variation in topography.

Fracture zones are seismically inactive areas that show evidence of past transform fault activity.

What is a hydrothermal vent? What process is involved in their making? Who is responsible for discovering these vents?

Trenches are often the originators of large earthquakes and tsunamis.

What is not thought to have an effect on the formation of submarine canyons?

What is a characteristic of transform faults?

What is a characteristic of the water that is expelled from hydrothermal vents?

Satellites use ____ to calculate the depths of the ocean.

John Murray was an oceanographer who sailed on the HMS Challenger between 1872 and 1876 and he completed the following

What is the flatness of abyssal plains associated with?

What specifically connects the continental shelves to the deep-ocean floor?

What is considered an important factor in shaping western boundary continental rises?

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Sediments

Water and Ocean Structure

Ocean Chemistry

Circulation of the Atmosphere

Circulation of the Ocean

Waves

Tides

Coasts

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Communities

Marine Resources

The Ocean and The Environment

Filters