Question 1

Which of the following places would NOT be a good place to visit a reef?

Accepted Answer

A) shallow seas that are relatively free of suspended sediment 
B) the area offshore of northeastern Australia 
C) the Caribbean 
D) islands in the southwestern Pacific Ocean 
E) shallow,clear waters off Iceland 
A) shallow seas that are relatively free of suspended sediment 
B) the area offshore of northeastern Australia 
C) the Caribbean 
D) islands in the southwestern Pacific Ocean 
E) shallow,clear waters off Iceland

Question 2

Which of the following is the present plate-tectonic setting of oceanic crust in the Bering Sea?

Accepted Answer

A) it contains a mid-ocean ridge 
B) it is being generated by back-arc spreading 
C) it does not contain any currently active plate boundaries 
D) it was formed by thinning of continental crust 
A) it contains a mid-ocean ridge 
B) it is being generated by back-arc spreading 
C) it does not contain any currently active plate boundaries 
D) it was formed by thinning of continental crust

Question 3

Which of the following is the presently occurring near the Sea of Japan?

Accepted Answer

A) oceanic crust in the sea of Japan is being generated by back-arc spreading 
B) Japan is moving closer to Asia over time 
C) Volcanoes in Japan are related to subduction of oceanic crust that forms in the Sea of Japan 
D) all of these 
A) oceanic crust in the sea of Japan is being generated by back-arc spreading 
B) Japan is moving closer to Asia over time 
C) Volcanoes in Japan are related to subduction of oceanic crust that forms in the Sea of Japan 
D) all of these

Question 4

Which of the numbered features on this figure is a continental shelf?

Accepted Answer

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

Question 5

In what setting does the thickest sediment accumulate in the oceans?

Accepted Answer

A) mid-ocean ridges in any location in the ocean 
B) abyssal plain in the middle of the ocean 
C) oceanic trenches in the middle of the ocean 
D) continental shelves and slopes along passive margins 
A) mid-ocean ridges in any location in the ocean 
B) abyssal plain in the middle of the ocean 
C) oceanic trenches in the middle of the ocean 
D) continental shelves and slopes along passive margins

Question 6

What has happened to the Pacific Ocean in the last 200 million years?

Accepted Answer

A) it has become deeper as the rate of seafloor spreading increased 
B) it became wider because of seafloor spreading 
C) it became smaller as the Atlantic Ocean opened 
D) it remained unchanged in size 
E) none of these 
A) it has become deeper as the rate of seafloor spreading increased 
B) it became wider because of seafloor spreading 
C) it became smaller as the Atlantic Ocean opened 
D) it remained unchanged in size 
E) none of these

Question 7

Which of these numbers is near a continental shelf?

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

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 9

Which of the following letters marks the Persian Gulf?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 10

Which parts of the seafloor have the youngest oceanic crust?

Accepted Answer

A) mid-ocean ridges 
B) abyssal plain 
C) oceanic trenches 
D) continental shelves along passive margins 
A) mid-ocean ridges 
B) abyssal plain 
C) oceanic trenches 
D) continental shelves along passive margins

Question 11

Which of the following features is NOT present near the present-day Caribbean?

Accepted Answer

A) a subduction zone 
B) an island arc 
C) a long transform fault 
D) reefs 
E) all of these are present 
A) a subduction zone 
B) an island arc 
C) a long transform fault 
D) reefs 
E) all of these are present

Question 12

If you were looking for graded beds,where would be a good place to look?

Accepted Answer

A) in a warm and shallow lagoon 
B) in the center of an atoll 
C) just offshore of a sediment-poor beach 
D) in a submarine fan 
E) none of these 
A) in a warm and shallow lagoon 
B) in the center of an atoll 
C) just offshore of a sediment-poor beach 
D) in a submarine fan 
E) none of these

Question 13

Which of the following letters marks the Red Sea?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 14

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

Question 15

Which of the following is an island arc?

Accepted Answer

A) Hawaiian Islands 
B) Iceland 
C) the East African Rift 
D) Aleutian Islands 
E) none of these 
A) Hawaiian Islands 
B) Iceland 
C) the East African Rift 
D) Aleutian Islands 
E) none of these

Question 16

Once salt deposits are formed,they can:

Accepted Answer

A) flow upward because they are less dense than normal rocks 
B) slip and flow,allowing overlying rocks to fold and fault 
C) flow down hillslopes,forming a salt glacier 
D) form a steep slope or escarpment on the seafloor 
E) all of these 
A) flow upward because they are less dense than normal rocks 
B) slip and flow,allowing overlying rocks to fold and fault 
C) flow down hillslopes,forming a salt glacier 
D) form a steep slope or escarpment on the seafloor 
E) all of these

Question 17

Why does the elevation of the seafloor decrease from the mid-ocean ridge to the abyssal plain?

Accepted Answer

A) The oceanic lithosphere cools and becomes denser. 
B) The weight of sediments depresses the oceanic crust. 
C) The oceanic plate is flexed downward near a subduction zone. 
D) Slab rollback pulls the oceanic lithosphere deeper. 
A) The oceanic lithosphere cools and becomes denser. 
B) The weight of sediments depresses the oceanic crust. 
C) The oceanic plate is flexed downward near a subduction zone. 
D) Slab rollback pulls the oceanic lithosphere deeper.

Question 18

Most oceanic plateaus are:

Accepted Answer

A) small pieces rifted apart from continents 
B) places where the seafloor has been buckled upward by convergence 
C) constructed by volcanic eruptions probably over mantle plumes 
D) large fan-shaped mounds deposited by turbidity currents 
A) small pieces rifted apart from continents 
B) places where the seafloor has been buckled upward by convergence 
C) constructed by volcanic eruptions probably over mantle plumes 
D) large fan-shaped mounds deposited by turbidity currents

Question 19

In the Atlantic Ocean,where is the oldest oceanic crust?

Accepted Answer

A) mid-ocean ridges 
B) abyssal plain next to the continents 
C) oceanic trenches 
D) seamounts 
E) continental shelves close to the shoreline 
A) mid-ocean ridges 
B) abyssal plain next to the continents 
C) oceanic trenches 
D) seamounts 
E) continental shelves close to the shoreline

Question 20

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

Which of the following places would NOT be a good place to visit a reef?

Which of the following is the present plate-tectonic setting of oceanic crust in the Bering Sea?

Which of the following is the presently occurring near the Sea of Japan?

Which of the numbered features on this figure is a continental shelf?

In what setting does the thickest sediment accumulate in the oceans?

What has happened to the Pacific Ocean in the last 200 million years?

Which of these numbers is near a continental shelf?

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

Which of the following letters marks the Persian Gulf?

Which parts of the seafloor have the youngest oceanic crust?

Which of the following features is NOT present near the present-day Caribbean?

If you were looking for graded beds,where would be a good place to look?

Which of the following letters marks the Red Sea?

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

Which of the following is an island arc?

Once salt deposits are formed,they can:

Why does the elevation of the seafloor decrease from the mid-ocean ridge to the abyssal plain?

Most oceanic plateaus are:

In the Atlantic Ocean,where is the oldest oceanic crust?

Which of these numbered features has the thinnest sediment?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments and Rocks

Deformation and Metamorphism

Geologic Time

Mountains, basins, and Continents

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

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

Exam 10: The Seafloor and Continental Margins

Which of the following places would NOT be a good place to visit a reef?

Which of the following is the present plate-tectonic setting of oceanic crust in the Bering Sea?

Which of the following is the presently occurring near the Sea of Japan?

Which of the numbered features on this figure is a continental shelf?

In what setting does the thickest sediment accumulate in the oceans?

What has happened to the Pacific Ocean in the last 200 million years?

Which of these numbers is near a continental shelf?

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

Which of the following letters marks the Persian Gulf?

Which parts of the seafloor have the youngest oceanic crust?

Which of the following features is NOT present near the present-day Caribbean?

If you were looking for graded beds,where would be a good place to look?

Which of the following letters marks the Red Sea?

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

Which of the following is an island arc?

Once salt deposits are formed,they can:

Why does the elevation of the seafloor decrease from the mid-ocean ridge to the abyssal plain?

Most oceanic plateaus are:

In the Atlantic Ocean,where is the oldest oceanic crust?

Which of these numbered features has the thinnest sediment?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments and Rocks

Deformation and Metamorphism

Geologic Time

Mountains, basins, and Continents

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

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