Question 1

A program of deep-sea drilling for cores from the ocean's bottom is carried out by the

Accepted Answer

A)  Kon-Tiki. 
B)  Fram. 
C)  JOIDES Resolution. 
D)  Calypso. 
E)  Beagle. 
A)  Kon-Tiki. 
B)  Fram. 
C)  JOIDES Resolution. 
D)  Calypso. 
E)  Beagle.

Question 2

The deepest portion of the lithosphere is formed from

Accepted Answer

A)  oceanic basalt. 
B)  terrestrial granite. 
C)  a combination of basalt and granite. 
D)  mantle material. 
E)  the Moho. 
A)  oceanic basalt. 
B)  terrestrial granite. 
C)  a combination of basalt and granite. 
D)  mantle material. 
E)  the Moho.

Question 3

The crust and the mantle are divided into the following layers in order of increasing depth:

Accepted Answer

A)  mesosphere, lithosphere, asthenosphere 
B)  asthenosphere, lithosphere, mesosphere 
C)  lithosphere, mesosphere, asthenosphere 
D)  lithosphere, asthenosphere, mesosphere 
E)  asthenosphere, mesosphere, lithosphere 
A)  mesosphere, lithosphere, asthenosphere 
B)  asthenosphere, lithosphere, mesosphere 
C)  lithosphere, mesosphere, asthenosphere 
D)  lithosphere, asthenosphere, mesosphere 
E)  asthenosphere, mesosphere, lithosphere

Question 4

Isostatic columns of crustal material produce equal pressures deep within the mantle.

Accepted Answer

A) True 
 B)False

Question 5

The continental landmasses are less dense than the mantle and are buoyed up by depressing the underlying mantle.

Accepted Answer

A) True 
 B)False

Question 6

The deep-ocean trenches are usually associated with

Accepted Answer

A)  volcanism. 
B)  island arc systems. 
C)  earthquakes. 
D)  All of these are correct. 
E)  None of these are correct. 
A)  volcanism. 
B)  island arc systems. 
C)  earthquakes. 
D)  All of these are correct. 
E)  None of these are correct.

Question 7

Which layer of the Earth contains the greatest mass?

Accepted Answer

A)  Core 
B)  Mantle 
C)  Crust 
D)  Lithosphere 
E)  Asthenosphere 
A)  Core 
B)  Mantle 
C)  Crust 
D)  Lithosphere 
E)  Asthenosphere

Question 8

Spreading at mid ocean ridges tends to occur in increments rather than continuously.

Accepted Answer

A) True 
 B)False

Question 9

Continental crust is generally thicker and less dense than oceanic crust.

Accepted Answer

A) True 
 B)False

Question 10

The density of Earth materials _______ as the core is approached.

Accepted Answer

A)  remains the same 
B)  decreases 
C)  increases 
D)  increases then decreases 
E)  decreases then increases 
A)  remains the same 
B)  decreases 
C)  increases 
D)  increases then decreases 
E)  decreases then increases

Question 11

Seafloor spreading is continuing at a rate of approximately

Accepted Answer

A)  1 to 10cm/year. 
B)  1 to 10m/year. 
C)  1 to 10km/year. 
D)  1 to 100cm/year. 
E)  1 to 100m/year. 
A)  1 to 10cm/year. 
B)  1 to 10m/year. 
C)  1 to 10km/year. 
D)  1 to 100cm/year. 
E)  1 to 100m/year.

Question 12

Thinning of Earth's crust and the resulting faulting is called

Accepted Answer

A)  convection. 
B)  subduction. 
C)  folding. 
D)  rifting. 
E)  trailing. 
A)  convection. 
B)  subduction. 
C)  folding. 
D)  rifting. 
E)  trailing.

Question 13

Deposits of sediments are usually thicker along passive continental margins.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following help us believe that Earth's mass is distributed spherically and uniformly around Earth's center?

Accepted Answer

A)  Lack of roughness of Earth's surface 
B)  Earth's spherical shape 
C)  Lack of rotational wobble 
D)  Earth's spherical shape and lack of rotational wobble. 
E)  Lack of roughness of Earth's surface, Earth's spherical shape, and lack of rotational wobble are correct 
A)  Lack of roughness of Earth's surface 
B)  Earth's spherical shape 
C)  Lack of rotational wobble 
D)  Earth's spherical shape and lack of rotational wobble. 
E)  Lack of roughness of Earth's surface, Earth's spherical shape, and lack of rotational wobble are correct

Question 15

The Pacific plate is carrying Baja California and the coastal cities of Southern California ______ the continent of North America.

Accepted Answer

A)  away from (west) 
B)  toward (east) 
C)  southward along 
D)  northward along 
E)  None of these are correct; there is no motion in this region. 
A)  away from (west) 
B)  toward (east) 
C)  southward along 
D)  northward along 
E)  None of these are correct; there is no motion in this region.

Question 16

Which of the following are found along subduction zones?

Accepted Answer

A)  Oceanic trenches 
B)  Active earthquake zones 
C)  Island arc systems 
D)  All of these are correct. 
E)  None of these are correct. 
A)  Oceanic trenches 
B)  Active earthquake zones 
C)  Island arc systems 
D)  All of these are correct. 
E)  None of these are correct.

Question 17

Which of Earth's layers contains the greatest volume of material?

Accepted Answer

A)  Inner core 
B)  Outer core 
C)  Mantle 
D)  Lithosphere 
E)  Outer crust 
A)  Inner core 
B)  Outer core 
C)  Mantle 
D)  Lithosphere 
E)  Outer crust

Question 18

The oceans' oldest sediments are found

Accepted Answer

A)  adjacent to a rift valley. 
B)  on top of the basalt layer, far from spreading centers. 
C)  adjacent to a transform fault. 
D)  at the surface of sediment layers, far from spreading centers. 
E)  in hot spots. 
A)  adjacent to a rift valley. 
B)  on top of the basalt layer, far from spreading centers. 
C)  adjacent to a transform fault. 
D)  at the surface of sediment layers, far from spreading centers. 
E)  in hot spots.

Question 19

The refraction and shadow patterns of seismic P-waves and S-waves indicate the dimensions and properties of Earth's layers.

Accepted Answer

A) True 
 B)False

Question 20

Volcanic activity is common at transform plate boundaries.

Accepted Answer

A) True 
 B)False

A program of deep-sea drilling for cores from the ocean's bottom is carried out by the

The deepest portion of the lithosphere is formed from

The crust and the mantle are divided into the following layers in order of increasing depth:

Isostatic columns of crustal material produce equal pressures deep within the mantle.

The continental landmasses are less dense than the mantle and are buoyed up by depressing the underlying mantle.

The deep-ocean trenches are usually associated with

Which layer of the Earth contains the greatest mass?

Spreading at mid ocean ridges tends to occur in increments rather than continuously.

Continental crust is generally thicker and less dense than oceanic crust.

The density of Earth materials _______ as the core is approached.

Seafloor spreading is continuing at a rate of approximately

Thinning of Earth's crust and the resulting faulting is called

Deposits of sediments are usually thicker along passive continental margins.

Which of the following help us believe that Earth's mass is distributed spherically and uniformly around Earth's center?

The Pacific plate is carrying Baja California and the coastal cities of Southern California ______ the continent of North America.

Which of the following are found along subduction zones?

Which of Earth's layers contains the greatest volume of material?

The oceans' oldest sediments are found

The refraction and shadow patterns of seismic P-waves and S-waves indicate the dimensions and properties of Earth's layers.

Volcanic activity is common at transform plate boundaries.

The Water Planet

The Sea Floor and Its Sediments

The Physical Properties of Water

Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Energy, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Prologue: The History of Oceanography

Filters

Exam 2: Earth Structure and Plate Tectonics

A program of deep-sea drilling for cores from the ocean's bottom is carried out by the

The deepest portion of the lithosphere is formed from

The crust and the mantle are divided into the following layers in order of increasing depth:

Isostatic columns of crustal material produce equal pressures deep within the mantle.

The continental landmasses are less dense than the mantle and are buoyed up by depressing the underlying mantle.

The deep-ocean trenches are usually associated with

Which layer of the Earth contains the greatest mass?

Spreading at mid ocean ridges tends to occur in increments rather than continuously.

Continental crust is generally thicker and less dense than oceanic crust.

The density of Earth materials _______ as the core is approached.

Seafloor spreading is continuing at a rate of approximately

Thinning of Earth's crust and the resulting faulting is called

Deposits of sediments are usually thicker along passive continental margins.

Which of the following help us believe that Earth's mass is distributed spherically and uniformly around Earth's center?

The Pacific plate is carrying Baja California and the coastal cities of Southern California ______ the continent of North America.

Which of the following are found along subduction zones?

Which of Earth's layers contains the greatest volume of material?

The oceans' oldest sediments are found

The refraction and shadow patterns of seismic P-waves and S-waves indicate the dimensions and properties of Earth's layers.

Volcanic activity is common at transform plate boundaries.

The Water Planet

The Sea Floor and Its Sediments

The Physical Properties of Water

Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Energy, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Prologue: The History of Oceanography

Filters