Question 1

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 MohoF) A) and E)
G) A) and B)

Question 2

Earth's inner core is liquid whereas its outer core is solid.

Accepted Answer

A) True 
 B)False

Question 3

Fracture zones ________.

Accepted Answer

A)   are characterized by volcanism
B)   are characterized by earthquakes
C)   separate plates that move in different directions
D)   are a source of high heat flux
E)   None of these is correct.F) All of the above
G) A) and E)

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Seismic surface waves travel at about the same speed as ocean waves.

Accepted Answer

A) True 
 B)False

Question 6

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) B) and E)
G) B) and D)

Question 7

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 increasesF) A) and B)
G) A) and C)

Exam 2: Earth Structure and Plate Tectonics

The deepest portion of the lithosphere is formed from ________.

Correct Answer
verified

Fracture zones ________.

Correct Answer
verified

Earth's inner core is liquid whereas its outer core is solid.

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Seismic surface waves travel at about the same speed as ocean waves.

Correct Answer
verified

Exam 2: Earth Structure and Plate Tectonics

The deepest portion of the lithosphere is formed from ________.

Correct AnswerverifiedShow Answer

Fracture zones ________.

Correct AnswerverifiedShow Answer

Earth's inner core is liquid whereas its outer core is solid.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Seismic surface waves travel at about the same speed as ocean waves.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified