Question 1

The motion between the two sides of a transform fault is greatest

Accepted Answer

A)   outside the adjacent ridge axes.
B)   north of the adjacent ridge axes.
C)   between the adjacent ridge axes.
D)   south of the adjacent ridge axes.
E)   east or west of the adjacent ridge axes.F) A) and D)
G) A) and C)

Question 2

S waves are able to travel through both solid and liquid.

Accepted Answer

A) True 
 B)False

Question 3

The edge of an active continental margin bordered by a deep-sea trench is wide and shallow with deep deposits of land-derived sediments.

Accepted Answer

A) True 
 B)False

Question 4

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°.F) C) and E)
G) A) and E)

Question 5

The density of the inner core reaches a maximum of about ____ grams/cm3.

Accepted Answer

A)   150
B)   70
C)   52
D)   31
E)   16F) C) and D)
G) All of the above

Question 6

Epicenters are points on Earth's surface directly above a hot spot.

Accepted Answer

A) True 
 B)False

Question 7

Which layer is believed to behave most like a liquid?

Accepted Answer

A)   Outer Core
B)   Mantle
C)   Crust
D)   Lithosphere
E)   Inner CoreF) A) and C)
G) A) and B)

Question 8

P waves travel only along the Surface of the Earth.

Accepted Answer

A) True 
 B)False

Question 9

The age of the seamounts from Hawaii to Midway Island increases in age from east to west.

Accepted Answer

A) True 
 B)False

Question 10

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 11

P waves travel more quickly than S waves.

Accepted Answer

A) True 
 B)False

Question 12

The North Atlantic Ocean was the first modern ocean to open during the breakup of Pangaea.

Accepted Answer

A) True 
 B)False

Question 13

The thickness of deep-sea sediments increases with distance from a spreading center.

Accepted Answer

A) True 
 B)False

Question 14

Plates move horizontally past each other along

Accepted Answer

A)   transform faults.
B)   convergent plate boundaries.
C)   divergent plate boundaries.
D)   the rift valley.
E)   hot spots.F) A) and E)
G) C) and E)

Question 15

Hess's 1960s theory of mantle convection and seafloor spreading was essentially correct.

Accepted Answer

A) True 
 B)False

Question 16

The present oceans have been created during the last

Accepted Answer

A)   2250 million years.
B)   225 million years.
C)   20 million years.
D)   2 million years.
E)   2 billion years.F) A) and B)
G) A) and C)

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

California is an example of a passive continental margin.

Accepted Answer

A) True 
 B)False

Question 19

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, CaribbeanF) None of the above
G) A) and E)

Question 20

A fixed volcanic hot spot on Earth tends to produce a _______ on a moving plate.

Accepted Answer

A)   series of volcanic peaks
B)   high landmass with a fixed location
C)   transform fault system
D)   submarine canyon and associated abyssal hills
E)   trenchF) D) and E)
G) C) and D)

Exam 2: Earth Structure and Plate Tectonics

P waves travel only along the Surface of the Earth.

Correct AnswerverifiedShow Answer

Plates move horizontally past each other along

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

List the following plates in order of largest to smallest:

Correct AnswerverifiedShow Answer

S waves are able to travel through both solid and liquid.

Correct AnswerverifiedShow Answer

P waves travel more quickly than S waves.

Correct AnswerverifiedShow Answer

Which layer is believed to behave most like a liquid?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The present oceans have been created during the last

Correct AnswerverifiedShow Answer

The edge of an active continental margin bordered by a deep-sea trench is wide and shallow with deep deposits of land-derived sediments.

Correct AnswerverifiedShow Answer

Hess's 1960s theory of mantle convection and seafloor spreading was essentially correct.

Correct AnswerverifiedShow Answer

The thickness of deep-sea sediments increases with distance from a spreading center.

Correct AnswerverifiedShow Answer

The motion between the two sides of a transform fault is greatest

Correct AnswerverifiedShow Answer

Epicenters are points on Earth's surface directly above a hot spot.

Correct AnswerverifiedShow Answer

California is an example of a passive continental margin.

Correct AnswerverifiedShow Answer

A fixed volcanic hot spot on Earth tends to produce a _______ on a moving plate.

Correct AnswerverifiedShow Answer

The age of the seamounts from Hawaii to Midway Island increases in age from east to west.

Correct AnswerverifiedShow Answer

The North Atlantic Ocean was the first modern ocean to open during the breakup of Pangaea.

Correct AnswerverifiedShow Answer

The density of the inner core reaches a maximum of about ____ grams/cm3.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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The density of the inner core reaches a maximum of about ____ grams/cm³.

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