Question 1

The continental margin is divided into three sections with the continental slope blending the continental margin into the deep-ocean basins.

Accepted Answer

A) True 
 B)False

Question 2

What statement is true of the surface area of oceanic ridges and their associated features?

Accepted Answer

A)  They consist of slightly less area than that of all the land above sea level. 
B)  They consist of more area than that of all land above sea level. 
C)  These are almost always located in the mid-ocean. 
D)  These areas are largely covered by sediments. 
A)  They consist of slightly less area than that of all the land above sea level. 
B)  They consist of more area than that of all land above sea level. 
C)  These are almost always located in the mid-ocean. 
D)  These areas are largely covered by sediments.

Question 3

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 4

If oceanic ridges in the Pacific are more active, then it is expected that the ridges are:

Accepted Answer

A)  steeper in profile. 
B)  narrow. 
C)  wide. 
D)  the only areas to find transform faults. 
A)  steeper in profile. 
B)  narrow. 
C)  wide. 
D)  the only areas to find transform faults.

Question 5

What transports most of the sediment that forms the continental rise?

Accepted Answer

A)  Plate tectonics 
B)  Turbidity currents 
C)  Convection 
D)  Active margin geological activity 
A)  Plate tectonics 
B)  Turbidity currents 
C)  Convection 
D)  Active margin geological activity

Question 6

What is a disadvantage of using multibeam echo systems to map the entire seafloor?

Accepted Answer

A)  It can only detect a single narrow corridor of the seafloor. 
B)  There are many beams that radiate from the ship's hull. 
C)  There are very few vessels that are actually outfitted with these systems. 
D)  The systems send a pulse of sound every ten seconds. 
A)  It can only detect a single narrow corridor of the seafloor. 
B)  There are many beams that radiate from the ship's hull. 
C)  There are very few vessels that are actually outfitted with these systems. 
D)  The systems send a pulse of sound every ten seconds.

Question 7

Active margins tend to be narrow in comparison to broad passive margins.

Accepted Answer

A) True 
 B)False

Question 8

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 9

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 10

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 11

The fundamental success of ocean depth measurements taken by satellites is based on the variation of gravitational pull associated with bathymetric features.

Accepted Answer

A) True 
 B)False

Question 12

How long is it estimated to take the ocean's volume of water to circulate through the oceanic crust at spreading centers?

Accepted Answer

A)  1 million years 
B)  10 million years 
C)  100 million years 
D)  1 billion years 
A)  1 million years 
B)  10 million years 
C)  100 million years 
D)  1 billion years

Question 13

Where does most of the material on the continental shelf come from?

Accepted Answer

A)  Erosion from the adjacent continent 
B)  Sediments transported from rivers 
C)  Accumulations behind natural dams 
D)  New crust formation 
A)  Erosion from the adjacent continent 
B)  Sediments transported from rivers 
C)  Accumulations behind natural dams 
D)  New crust formation

Question 14

The weight of ice atop a continent can depress the depth of the shelf break.

Accepted Answer

A) True 
 B)False

Question 15

____ are likely to be found in subduction zones.

Accepted Answer

A)  Abyssal hills 
B)  Submarine canyons 
C)  Mid-ocean ridges 
D)  Trenches 
A)  Abyssal hills 
B)  Submarine canyons 
C)  Mid-ocean ridges 
D)  Trenches

Question 16

Only temperature and salinity have an effect on the speed of sound.

Accepted Answer

A) True 
 B)False

Question 17

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 18

Turbidity currents are propelled by the water within them.

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

The answer of Describe how submarine canyons are formed? Where...

Question 20

What partly explains the seabed topography we observe?

Accepted Answer

A)  The jostling due to plate tectonics. 
B)  The greater density of continental lithosphere. 
C)  The presence of continental margins. 
D)  The little interaction with the asthenosphere. 
A)  The jostling due to plate tectonics. 
B)  The greater density of continental lithosphere. 
C)  The presence of continental margins. 
D)  The little interaction with the asthenosphere.

The continental margin is divided into three sections with the continental slope blending the continental margin into the deep-ocean basins.

What statement is true of the surface area of oceanic ridges and their associated features?

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

If oceanic ridges in the Pacific are more active, then it is expected that the ridges are:

What transports most of the sediment that forms the continental rise?

What is a disadvantage of using multibeam echo systems to map the entire seafloor?

Active margins tend to be narrow in comparison to broad passive margins.

What is not a general characteristic of an active margin?

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

The submerged outer edge of a continent is called:

The fundamental success of ocean depth measurements taken by satellites is based on the variation of gravitational pull associated with bathymetric features.

How long is it estimated to take the ocean's volume of water to circulate through the oceanic crust at spreading centers?

Where does most of the material on the continental shelf come from?

The weight of ice atop a continent can depress the depth of the shelf break.

____ are likely to be found in subduction zones.

Only temperature and salinity have an effect on the speed of sound.

What is a characteristic of transform faults?

Turbidity currents are propelled by the water within them.

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

What partly explains the seabed topography we observe?

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

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Life in the Ocean

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Marine Animals

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Exam 4: Ocean Basins

The continental margin is divided into three sections with the continental slope blending the continental margin into the deep-ocean basins.

What statement is true of the surface area of oceanic ridges and their associated features?

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

If oceanic ridges in the Pacific are more active, then it is expected that the ridges are:

What transports most of the sediment that forms the continental rise?

What is a disadvantage of using multibeam echo systems to map the entire seafloor?

Active margins tend to be narrow in comparison to broad passive margins.

What is not a general characteristic of an active margin?

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

The submerged outer edge of a continent is called:

The fundamental success of ocean depth measurements taken by satellites is based on the variation of gravitational pull associated with bathymetric features.

How long is it estimated to take the ocean's volume of water to circulate through the oceanic crust at spreading centers?

Where does most of the material on the continental shelf come from?

The weight of ice atop a continent can depress the depth of the shelf break.

____ are likely to be found in subduction zones.

Only temperature and salinity have an effect on the speed of sound.

What is a characteristic of transform faults?

Turbidity currents are propelled by the water within them.

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

What partly explains the seabed topography we observe?

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