Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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

Question 3

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 4

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

Accepted Answer

A) True 
 B)False

Question 5

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 6

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

Accepted Answer

A) True 
 B)False

Question 7

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. 
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.

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

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

The deepest portion of the lithosphere is formed from ________.

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

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

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

Fracture zones ________.

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

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

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

The deepest portion of the lithosphere is formed from ________.

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

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

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

Fracture zones ________.

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