Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

The thickness of oceanic crust increases with age.

Accepted Answer

A) True 
 B)False

Question 3

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 
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

Question 4

Evidence supporting the theory of continental drift includes ________.

Accepted Answer

A)  the fit of continental margins on opposite sides of the Atlantic Ocean 
B)  the presence of similar mountain belts along continental margins across oceanic basins 
C)  the distribution of fossil organisms 
D)  the presence of similar glacial patterns across oceanic basins 
E)  All of these are correct. 
A)  the fit of continental margins on opposite sides of the Atlantic Ocean 
B)  the presence of similar mountain belts along continental margins across oceanic basins 
C)  the distribution of fossil organisms 
D)  the presence of similar glacial patterns across oceanic basins 
E)  All of these are correct.

Question 5

Based on the current directions of plate motion, China and the West Coast of the United States are getting closer.

Accepted Answer

A) True 
 B)False

Question 6

List the following plates in order of largest to smallest:

Accepted Answer

A)  North American, Pacific, Australian, Caribbean, Indian 
B)  Pacific, Indian, North American, Australian, Caribbean 
C)  Indian, Pacific, North American, Caribbean, Australian 
D)  Pacific, North American, Australian, Indian, Caribbean 
E)  Pacific, Australian, North American, Indian, Caribbean 
A)  North American, Pacific, Australian, Caribbean, Indian 
B)  Pacific, Indian, North American, Australian, Caribbean 
C)  Indian, Pacific, North American, Caribbean, Australian 
D)  Pacific, North American, Australian, Indian, Caribbean 
E)  Pacific, Australian, North American, Indian, Caribbean

Question 7

P waves travel only along the surface of the Earth.

Accepted Answer

A) True 
 B)False

Question 8

Which of the Earth's layers has the greatest density?

Accepted Answer

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

Question 9

The Moho is located between the ________.

Accepted Answer

A)  lithosphere and the asthenosphere 
B)  crust and the mantle 
C)  mantle and the outer core 
D)  inner and outer cores 
E)  continental margin and the abyssal plain 
A)  lithosphere and the asthenosphere 
B)  crust and the mantle 
C)  mantle and the outer core 
D)  inner and outer cores 
E)  continental margin and the abyssal plain

Question 10

During the next magnetic reversal, the magnetic force field surrounding Earth will shift by about ________.

Accepted Answer

A)  45° 
B)  90° 
C)  180° 
D)  270° 
E)  360° 
A)  45° 
B)  90° 
C)  180° 
D)  270° 
E)  360°

Question 11

Which of the following terms consistently describe an oceanic-continental subduction zone?

Accepted Answer

A)  Shallow to deep earthquakes, volcanism, older oceanic crust, ocean trenches 
B)  Shallow to deep earthquakes, no volcanism, younger oceanic crust, ocean trenches 
C)  Only shallow earthquakes, volcanism, younger oceanic crust, ocean trenches 
D)  Only shallow earthquakes, volcanism, older oceanic crust, ocean trenches 
E)  No earthquakes, volcanism, older oceanic crust, thick sediment 
A)  Shallow to deep earthquakes, volcanism, older oceanic crust, ocean trenches 
B)  Shallow to deep earthquakes, no volcanism, younger oceanic crust, ocean trenches 
C)  Only shallow earthquakes, volcanism, younger oceanic crust, ocean trenches 
D)  Only shallow earthquakes, volcanism, older oceanic crust, ocean trenches 
E)  No earthquakes, volcanism, older oceanic crust, thick sediment

Question 12

Shear waves do not pass through a solid-liquid boundary between Earth's layers. Compressional waves can pass this type of boundary.

Accepted Answer

A) True 
 B)False

Question 13

Before Pangaea, there was an earlier supercontinent we call ________.

Accepted Answer

A)  Panthalassa 
B)  Gorda 
C)  Rodinia 
D)  Lefse 
E)  Neogenia 
A)  Panthalassa 
B)  Gorda 
C)  Rodinia 
D)  Lefse 
E)  Neogenia

Question 14

Identify all of the different observations Alfred Wegener used to support his theory of continental drift.

Accepted Answer

A)  Seafloor magnetic anomalies 
B)  Geographic fit of the continents 
C)  Studies of fossil plants and animals 
D)  Dipping zones of earthquakes at ocean trenches 
E)  Patterns of glaciation
F) Shallow earthquakes along transform faults
G) Matching bodies of rock on either side of the Atlantic
H) Alignment of mountain ranges when the Atlantic is closed
I) High heat flow at oceanic ridges 
A)  Seafloor magnetic anomalies 
B)  Geographic fit of the continents 
C)  Studies of fossil plants and animals 
D)  Dipping zones of earthquakes at ocean trenches 
E)  Patterns of glaciation
F) Shallow earthquakes along transform faults
G) Matching bodies of rock on either side of the Atlantic
H) Alignment of mountain ranges when the Atlantic is closed
I) High heat flow at oceanic ridges

Question 15

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

Question 16

Deposits of sediments are usually thicker along passive continental margins.

Accepted Answer

A) True 
 B)False

Question 17

The deep mantle below the asthenosphere is called the mesosphere.

Accepted Answer

A) True 
 B)False

Question 18

Deep earthquakes, (below 100 km, or 60 mi) are usually associated with oceanic ridges.

Accepted Answer

A) True 
 B)False

Question 19

Over 170 reversals of Earth's magnetic field have been recorded in the past 80 million years.

Accepted Answer

A) True 
 B)False

Question 20

Seafloor spreading can be detected by ________.

Accepted Answer

A)  changes in water temperature 
B)  changes in water chemistry 
C)  acoustic monitoring 
D)  submersible observation of the seafloor 
E)  All of these are correct. 
A)  changes in water temperature 
B)  changes in water chemistry 
C)  acoustic monitoring 
D)  submersible observation of the seafloor 
E)  All of these are correct.

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

The thickness of oceanic crust increases with age.

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

Evidence supporting the theory of continental drift includes ________.

Based on the current directions of plate motion, China and the West Coast of the United States are getting closer.

List the following plates in order of largest to smallest:

P waves travel only along the surface of the Earth.

Which of the Earth's layers has the greatest density?

The Moho is located between the ________.

During the next magnetic reversal, the magnetic force field surrounding Earth will shift by about ________.

Which of the following terms consistently describe an oceanic-continental subduction zone?

Shear waves do not pass through a solid-liquid boundary between Earth's layers. Compressional waves can pass this type of boundary.

Before Pangaea, there was an earlier supercontinent we call ________.

Identify all of the different observations Alfred Wegener used to support his theory of continental drift.

The deep-ocean trenches are usually associated with ________.

Deposits of sediments are usually thicker along passive continental margins.

The deep mantle below the asthenosphere is called the mesosphere.

Deep earthquakes, (below 100 km, or 60 mi) are usually associated with oceanic ridges.

Over 170 reversals of Earth's magnetic field have been recorded in the past 80 million years.

Seafloor spreading can be detected by ________.

The Water Planet

The Sea Floor and Its Sediments

The Physical Properties of Water

The Chemistry of Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Productivity, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Filters

Exam 2: Earth Structure and Plate Tectonics

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

The thickness of oceanic crust increases with age.

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

Evidence supporting the theory of continental drift includes ________.

Based on the current directions of plate motion, China and the West Coast of the United States are getting closer.

List the following plates in order of largest to smallest:

P waves travel only along the surface of the Earth.

Which of the Earth's layers has the greatest density?

The Moho is located between the ________.

During the next magnetic reversal, the magnetic force field surrounding Earth will shift by about ________.

Which of the following terms consistently describe an oceanic-continental subduction zone?

Shear waves do not pass through a solid-liquid boundary between Earth's layers. Compressional waves can pass this type of boundary.

Before Pangaea, there was an earlier supercontinent we call ________.

Identify all of the different observations Alfred Wegener used to support his theory of continental drift.

The deep-ocean trenches are usually associated with ________.

Deposits of sediments are usually thicker along passive continental margins.

The deep mantle below the asthenosphere is called the mesosphere.

Deep earthquakes, (below 100 km, or 60 mi) are usually associated with oceanic ridges.

Over 170 reversals of Earth's magnetic field have been recorded in the past 80 million years.

Seafloor spreading can be detected by ________.

The Water Planet

The Sea Floor and Its Sediments

The Physical Properties of Water

The Chemistry of Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Productivity, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Filters