Question 1

Which of the following is NOT a way in which we map and investigate the seafloor?

Accepted Answer

A)  bouncing sound waves from a ship off the bottom 
B)  drilling holes into the seafloor from ships 
C)  using satellites to observe the sea surface 
D)  conducting seismic surveys to investigate rock layers 
E)  we use all of these techniques 
A)  bouncing sound waves from a ship off the bottom 
B)  drilling holes into the seafloor from ships 
C)  using satellites to observe the sea surface 
D)  conducting seismic surveys to investigate rock layers 
E)  we use all of these techniques

Question 2

What is the origin of the volcanoes in the Lesser Antilles and Central America?

Accepted Answer

A)  two hot spots on either side of the Caribbean plate 
B)  subduction of oceanic crust beneath the Caribbean plate 
C)  magma leaking up along transform faults 
D)  rapid spreading along the Mid-Atlantic Ridge 
A)  two hot spots on either side of the Caribbean plate 
B)  subduction of oceanic crust beneath the Caribbean plate 
C)  magma leaking up along transform faults 
D)  rapid spreading along the Mid-Atlantic Ridge

Question 3

Which of the following is a consistent feature of reefs and atolls?

Accepted Answer

A)  volcanic islands 
B)  passive continental margins 
C)  divergent plate boundaries 
D)  carbonate rocks and accumulations 
A)  volcanic islands 
B)  passive continental margins 
C)  divergent plate boundaries 
D)  carbonate rocks and accumulations

Question 4

What information can be determined directly by analyzing drill cores?

Accepted Answer

A)  The type of sediment on the seafloor 
B)  The rate of sediment deposition 
C)  The type of rock on the seafloor 
D)  All of these 
A)  The type of sediment on the seafloor 
B)  The rate of sediment deposition 
C)  The type of rock on the seafloor 
D)  All of these

Question 5

Where was the oceanic plateau relative to the hot spot 20 million years ago?

Accepted Answer

A)  farther away than today 
B)  the same distance as today 
C)  half the distance as today 
D)  on top of the hot spot 
A)  farther away than today 
B)  the same distance as today 
C)  half the distance as today 
D)  on top of the hot spot

Question 6

Hot spots form linear island chains because:

Accepted Answer

A)  the plate moves relative to the underlying hot spot 
B)  they are aligned with trenches formed by subduction 
C)  they occur along the mid-oceanic ridges 
A)  the plate moves relative to the underlying hot spot 
B)  they are aligned with trenches formed by subduction 
C)  they occur along the mid-oceanic ridges

Question 7

Which of these numbered features has the thinnest sediment?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  none of these 
A)  1 
B)  2 
C)  3 
D)  4 
E)  none of these

Question 8

Which of these numbers is on the abyssal plane?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  none of these 
A)  1 
B)  2 
C)  3 
D)  4 
E)  none of these

Question 9

These globes show the position of the continents and ocean basins at various times in the past. What is the correct order of these globes, from oldest to youngest?

Accepted Answer

A)  1, 2, 3, 4 
B)  1, 4, 3, 2 
C)  4, 3, 2, 1 
D)  4, 3, 1, 2 
E)  4, 1, 3, 2 
A)  1, 2, 3, 4 
B)  1, 4, 3, 2 
C)  4, 3, 2, 1 
D)  4, 3, 1, 2 
E)  4, 1, 3, 2

Question 10

Which of the following seas currently has back-arc spreading?

Accepted Answer

A)  Sea of Japan 
B)  Baltic Sea 
C)  Bering Sea 
D)  Gulf of California 
E)  all of these 
A)  Sea of Japan 
B)  Baltic Sea 
C)  Bering Sea 
D)  Gulf of California 
E)  all of these

Question 11

What are the characteristics of natural salt NaCl) deposits?

Accepted Answer

A)  Deposited in layers 
B)  Very soluble in water 
C)  Can flow to form domes 
D)  All of these are characteristics of natural salt deposits 
A)  Deposited in layers 
B)  Very soluble in water 
C)  Can flow to form domes 
D)  All of these are characteristics of natural salt deposits

Question 12

How wide was the narrow ocean between the central and eastern continents 20 million years ago?

Accepted Answer

A)  wider than it is today 
B)  same width as it is today 
C)  a little narrower than it is today 
D)  it was much narrower 
A)  wider than it is today 
B)  same width as it is today 
C)  a little narrower than it is today 
D)  it was much narrower

Question 13

Which of the following seas was formed by loading of thrust sheets of the Zagros Mountains?

Accepted Answer

A)  North Sea 
B)  Red Sea 
C)  Persian Gulf 
D)  Baltic Sea 
E)  all of these 
A)  North Sea 
B)  Red Sea 
C)  Persian Gulf 
D)  Baltic Sea 
E)  all of these

Question 14

In the ocean Investigation in the textbook, which processes) probably formed islands?

Accepted Answer

A)  volcanism associated with a hot spot 
B)  volcanism associated with a mid-ocean ridge 
C)  fragmentation of continents by long transform faults 
D)  back-arc spreading 
E)  all of these 
A)  volcanism associated with a hot spot 
B)  volcanism associated with a mid-ocean ridge 
C)  fragmentation of continents by long transform faults 
D)  back-arc spreading 
E)  all of these

Question 15

Which of these numbers is near a site with active seafloor spreading?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  none of these 
A)  1 
B)  2 
C)  3 
D)  4 
E)  none of these

Question 16

What do you think might happen to the oceanic plateau 20 million years into the future?

Accepted Answer

A)  It may become much larger than it is today. 
B)  It may collide with and become part of the central continent. 
C)  It may subside and become part of the abyssal plain. 
D)  It may collide with the trench. 
A)  It may become much larger than it is today. 
B)  It may collide with and become part of the central continent. 
C)  It may subside and become part of the abyssal plain. 
D)  It may collide with the trench.

Question 17

Which of the following seas) was formed when subduction jumped or shifted outward from the continent?

Accepted Answer

A)  North Sea 
B)  Bering Sea 
C)  Philippine Sea 
D)  Gulf of California 
E)  all of these 
A)  North Sea 
B)  Bering Sea 
C)  Philippine Sea 
D)  Gulf of California 
E)  all of these

Question 18

The abrupt change from thinned, faulted continental crust to oceanic crust occurs at the:

Accepted Answer

A)  continental slope 
B)  continental shelf 
C)  continental rise 
D)  abyssal plain 
A)  continental slope 
B)  continental shelf 
C)  continental rise 
D)  abyssal plain

Question 19

What was the length of the linear chain of islands 20 million years ago?

Accepted Answer

A)  longer than today 
B)  same length as today 
C)  half as long as today 
D)  it did not yet exist 
A)  longer than today 
B)  same length as today 
C)  half as long as today 
D)  it did not yet exist

Question 20

These globes show the position of the continents and ocean basins at various times in the past. Which of these represents the oldest time?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Which of the following is NOT a way in which we map and investigate the seafloor?

What is the origin of the volcanoes in the Lesser Antilles and Central America?

Which of the following is a consistent feature of reefs and atolls?

What information can be determined directly by analyzing drill cores?

Where was the oceanic plateau relative to the hot spot 20 million years ago?

Hot spots form linear island chains because:

Which of these numbered features has the thinnest sediment?

Which of these numbers is on the abyssal plane?

These globes show the position of the continents and ocean basins at various times in the past. What is the correct order of these globes, from oldest to youngest?

Which of the following seas currently has back-arc spreading?

What are the characteristics of natural salt NaCl) deposits?

How wide was the narrow ocean between the central and eastern continents 20 million years ago?

Which of the following seas was formed by loading of thrust sheets of the Zagros Mountains?

In the ocean Investigation in the textbook, which processes) probably formed islands?

Which of these numbers is near a site with active seafloor spreading?

What do you think might happen to the oceanic plateau 20 million years into the future?

Which of the following seas) was formed when subduction jumped or shifted outward from the continent?

The abrupt change from thinned, faulted continental crust to oceanic crust occurs at the:

What was the length of the linear chain of islands 20 million years ago?

These globes show the position of the continents and ocean basins at various times in the past. Which of these represents the oldest time?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Streams and Flooding

Water Resources

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Geology of the Solar System

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Exam 10: Seafloor and Continental Margins

Which of the following is NOT a way in which we map and investigate the seafloor?

What is the origin of the volcanoes in the Lesser Antilles and Central America?

Which of the following is a consistent feature of reefs and atolls?

What information can be determined directly by analyzing drill cores?

Where was the oceanic plateau relative to the hot spot 20 million years ago?

Hot spots form linear island chains because:

Which of these numbered features has the thinnest sediment?

Which of these numbers is on the abyssal plane?

These globes show the position of the continents and ocean basins at various times in the past. What is the correct order of these globes, from oldest to youngest?

Which of the following seas currently has back-arc spreading?

What are the characteristics of natural salt NaCl) deposits?

How wide was the narrow ocean between the central and eastern continents 20 million years ago?

Which of the following seas was formed by loading of thrust sheets of the Zagros Mountains?

In the ocean Investigation in the textbook, which processes) probably formed islands?

Which of these numbers is near a site with active seafloor spreading?

What do you think might happen to the oceanic plateau 20 million years into the future?

Which of the following seas) was formed when subduction jumped or shifted outward from the continent?

The abrupt change from thinned, faulted continental crust to oceanic crust occurs at the:

What was the length of the linear chain of islands 20 million years ago?

These globes show the position of the continents and ocean basins at various times in the past. Which of these represents the oldest time?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

Filters