Question 1

Atolls are volcanic peaks on the ocean floor.

Accepted Answer

A) True 
 B)False

Question 2

A circular coral reef that forms a ring of island around a central lagoon is a/an __________.

Accepted Answer

The answer of A circular coral reef that forms a...

Question 3

Oceanic crust is __________ than continental crust and therefore __________ isostatically.

Accepted Answer

A)  denser, sinks 
B)  denser, rises 
C)  lighter, sinks 
D)  lighter, rises 
A)  denser, sinks 
B)  denser, rises 
C)  lighter, sinks 
D)  lighter, rises

Question 4

Modern sea-floor maps are made with __________ __________ instruments.

Accepted Answer

The answer of Modern sea-floor maps are made with __________...

Question 5

Oceans do not affect global climate.

Accepted Answer

A) True 
 B)False

Question 6

An active continental margin forms:

Accepted Answer

A)  at mid-ocean ridges. 
B)  at continent-continent margins. 
C)  where an oceanic plate sinks beneath a continental plate at a subduction zone. 
D)  in a rift valley. 
A)  at mid-ocean ridges. 
B)  at continent-continent margins. 
C)  where an oceanic plate sinks beneath a continental plate at a subduction zone. 
D)  in a rift valley.

Question 7

The __________ __________ emits a high-energy signal from a research ship that penetrates and reflects from layers in sediment and rock.

Accepted Answer

The answer of The __________ __________ emits a high-energy signal...

Question 8

A continental shelf on a passive margin is usually a wide bathymetric feature.

Accepted Answer

A) True 
 B)False

Question 9

__________ __________ is a mixture of clay carried from continents and the remains of tiny plants and animals that live in the surface waters of the oceans.

Accepted Answer

The answer of __________ __________ is a mixture of clay...

Question 10

A/an __________ __________ is a shallow, gently sloping submarine surface on the submerged edge of a continent.

Accepted Answer

The answer of A/an __________ __________ is a shallow, gently...

Question 11

A/an __________ is a submarine mountain that rises 1 kilometer or more above the surrounding sea floor.

Accepted Answer

A)  seamount 
B)  white smoker 
C)  island arc 
D)  pillow basalt 
A)  seamount 
B)  white smoker 
C)  island arc 
D)  pillow basalt

Question 12

A circular coral reef that forms a ring of islands around a central lagoon is a/an __________.

Accepted Answer

A)  guyot 
B)  atoll 
C)  barrier island 
D)  pillow reef 
A)  guyot 
B)  atoll 
C)  barrier island 
D)  pillow reef

Question 13

At present, the Atlantic Ocean is growing, while the Pacific is shrinking.

Accepted Answer

A) True 
 B)False

Question 14

Continental margins on both sides of the Atlantic Ocean are __________ __________ __________.

Accepted Answer

passive co

Question 15

California, Oregon, Washington, and western British Columbia were added to North America as __________ __________.

Accepted Answer

The answer of California, Oregon, Washington, and western British Columbia...

Question 16

An oceanic island:

Accepted Answer

A)  rises isostatically as it becomes older. 
B)  is a seamount that rises above sea level. 
C)  is a guyot that forms adjacent to a hot spot. 
D)  is composed entirely of terrigenous sediment. 
A)  rises isostatically as it becomes older. 
B)  is a seamount that rises above sea level. 
C)  is a guyot that forms adjacent to a hot spot. 
D)  is composed entirely of terrigenous sediment.

Question 17

A flat-topped seamount is called a __________.

Accepted Answer

The answer of A flat-topped seamount is called a __________....

Question 18

If a series of island arcs collide with a continent over a long period of time, they add to a continent as:

Accepted Answer

A)  accreted terranes. 
B)  mid-oceanic ridges. 
C)  abyssal plains. 
D)  high plains. 
A)  accreted terranes. 
B)  mid-oceanic ridges. 
C)  abyssal plains. 
D)  high plains.

Question 19

If the modern Mid-Oceanic Ridge system were to disappear completely, sea level would rise by about 400 meters.

Accepted Answer

A) True 
 B)False

Question 20

The Mid-Oceanic Ridge is composed mainly of:

Accepted Answer

A)  basalt. 
B)  ocean floor sediments. 
C)  folded and faulted sedimentary rocks. 
D)  granite. 
A)  basalt. 
B)  ocean floor sediments. 
C)  folded and faulted sedimentary rocks. 
D)  granite.

Exam 15: Ocean Basins

Atolls are volcanic peaks on the ocean floor.

A circular coral reef that forms a ring of island around a central lagoon is a/an __________.

Oceanic crust is __________ than continental crust and therefore __________ isostatically.

Modern sea-floor maps are made with __________ __________ instruments.

Oceans do not affect global climate.

An active continental margin forms:

The __________ __________ emits a high-energy signal from a research ship that penetrates and reflects from layers in sediment and rock.

A continental shelf on a passive margin is usually a wide bathymetric feature.

__________ __________ is a mixture of clay carried from continents and the remains of tiny plants and animals that live in the surface waters of the oceans.

A/an __________ __________ is a shallow, gently sloping submarine surface on the submerged edge of a continent.

A/an __________ is a submarine mountain that rises 1 kilometer or more above the surrounding sea floor.

A circular coral reef that forms a ring of islands around a central lagoon is a/an __________.

At present, the Atlantic Ocean is growing, while the Pacific is shrinking.

Continental margins on both sides of the Atlantic Ocean are __________ __________ __________.

California, Oregon, Washington, and western British Columbia were added to North America as __________ __________.

An oceanic island:

A flat-topped seamount is called a __________.

If a series of island arcs collide with a continent over a long period of time, they add to a continent as:

If the modern Mid-Oceanic Ridge system were to disappear completely, sea level would rise by about 400 meters.

The Mid-Oceanic Ridge is composed mainly of:

Earth Systems

Minerals

Rocks

Geologic Time: a Story in the Rocks

Geologic Resources

The Active Earth: Plate Tectonics

Earthquakes and the Earths Structure

Volcanoes and Plutons

Mountains

Weathering, Soil, and Erosion

Fresh Water: Streams, Lakes, Ground Water, and Wetlands

Water Resources

Glaciers and Ice Ages

Deserts and Wind

Oceans and Coastlines

The Atmosphere

Energy Balance in the Atmosphere

Moisture, Clouds, and Weather

Climate

Climate Change

Motions in the Heavens

Planets and Their Moons

Stars, Space, and Galaxies

Filters

Oceanic crust is than continental crust and therefore isostatically.

Modern sea-floor maps are made with instruments.

The emits a high-energy signal from a research ship that penetrates and reflects from layers in sediment and rock.

is a mixture of clay carried from continents and the remains of tiny plants and animals that live in the surface waters of the oceans.

A/an is a shallow, gently sloping submarine surface on the submerged edge of a continent.

Continental margins on both sides of the Atlantic Ocean are __.

California, Oregon, Washington, and western British Columbia were added to North America as .