Question 1

Which process creates island chains with active volcanoes at one end? ​

Accepted Answer

A)  Asthenospheric convection moves a magma plume under a stationary plate.
B)  Magma plumes form on the Earth's outer core and rotate under a stationary plate.
C)  Divergent boundaries move plates away from a stationary magma plume.
D)  Convergent boundaries move the location of melting crust under a stationary plate.
E)  Crustal plates move over a stationary magma plume.F) A) and E)
G) C) and E)

Question 2

Convergent boundaries produce a relatively low number of earthquakes compared to other boundaries. ​

Accepted Answer

A) True 
 B)False

Question 3

Wegener proposed that the major continents were once part of a supercontinent named _______________. ​

Accepted Answer

The answer of Wegener proposed that the major continents were...

Question 4

When oceanic plates meet continental plates at a convergent boundary, a ____. ​

Accepted Answer

A)  subduction zone will form because the oceanic plate is more dense than the continental plate
B)  subduction zone will form because the oceanic plate is less dense than the continental plate
C)  rift zone will form because the oceanic plate is more dense than the continental plate
D)  rift zone will form because the oceanic plate is less dense than the continental plate
E)  subduction zone will form on the oceanic plate, and a rift zone will form on the continental plateF) All of the above
G) A) and B)

Question 5

Subduction zones ____. ​

Accepted Answer

A)  dissipate heat from Earth's interior
B)  occur when plates collide instead of sink
C)  produce high mountain ranges
D)  generate Earth's largest earthquakes
E)  are rarely associated with volcanoesF) A) and D)
G) All of the above

Question 6

The major islands of the state of Hawaii are formed from a line of separate volcanoes emerging from the ocean floor of the Pacific Plate. The line extends from Kauai in the northwest, to Hawai'i in the southeast over a range of hundreds of miles. Kauai was formed from volcanoes that formed about 5 million years ago; on Hawai'i the volcanoes are currently active. ​ Explain the process that formed the Hawaiian Islands and what information a geophysicist could determine about the motion of Earth's parts from observing them.

Accepted Answer

In the deep layers of the mantle, a hot ...

Question 7

Oceanic crust is denser than continental crust because ____.

Accepted Answer

A)  continental crust stands at a higher altitude
B)  oceanic crust is rich in silica
C)  oceanic crust is compressed at convergent boundaries
D)  water pressure from the oceans makes oceanic crust thinner
E)  oceanic crust is rich in iron- and magnesium-containing mineralsF) A) and E)
G) B) and E)

Question 8

A series of ridges along a divergent boundary marks a(n) _______________ zone. ​

Accepted Answer

The answer of A series of ridges along a divergent...

Question 9

Oceanic plates are ____. ​

Accepted Answer

A)  poor in basalt, but rich in silicates
B)  an even mix of basalts and silicates
C)  rich in basalt and silicates
D)  rich in basalt, but poor in silicates
E)  poor in basalts and silicatesF) None of the above
G) A) and E)

Question 10

A divergent boundary is responsible for rift zones. ​

Accepted Answer

A) True 
 B)False

Exam 2: Plate Tectonics and Physical Hazards

Oceanic plates are ____.

Correct Answer
verified

When oceanic plates meet continental plates at a convergent boundary, a ____.

Correct Answer
verified

A series of ridges along a divergent boundary marks a(n) _______________ zone.

Correct Answer
verified

Subduction zones ____.

Correct Answer
verified

A divergent boundary is responsible for rift zones.

Correct Answer
verified

Wegener proposed that the major continents were once part of a supercontinent named _______________.

Correct Answer
verified

Correct Answer
verified
In the deep layers of the mantle, a hot ...
View Answer

Convergent boundaries produce a relatively low number of earthquakes compared to other boundaries.

Correct Answer
verified

Which process creates island chains with active volcanoes at one end?

Correct Answer
verified

Oceanic crust is denser than continental crust because ____.

Correct Answer
verified

Exam 2: Plate Tectonics and Physical Hazards

Oceanic plates are ____. ​

Correct AnswerverifiedShow Answer

When oceanic plates meet continental plates at a convergent boundary, a ____. ​

Correct AnswerverifiedShow Answer

A series of ridges along a divergent boundary marks a(n) _______________ zone. ​

Correct AnswerverifiedShow Answer

Subduction zones ____. ​

Correct AnswerverifiedShow Answer

A divergent boundary is responsible for rift zones. ​

Correct AnswerverifiedShow Answer

Wegener proposed that the major continents were once part of a supercontinent named _______________. ​

Correct AnswerverifiedShow Answer

Correct AnswerverifiedIn the deep layers of the mantle, a hot ...View AnswerShow Answer

Convergent boundaries produce a relatively low number of earthquakes compared to other boundaries. ​

Correct AnswerverifiedShow Answer

Which process creates island chains with active volcanoes at one end? ​

Correct AnswerverifiedShow Answer

Oceanic crust is denser than continental crust because ____.

Correct AnswerverifiedShow Answer

Oceanic plates are ____.

Correct Answer
verified

When oceanic plates meet continental plates at a convergent boundary, a ____.

Correct Answer
verified

A series of ridges along a divergent boundary marks a(n) _______________ zone.

Correct Answer
verified

Subduction zones ____.

Correct Answer
verified

A divergent boundary is responsible for rift zones.

Correct Answer
verified

Wegener proposed that the major continents were once part of a supercontinent named _______________.

Correct Answer
verified

Correct Answer
verified
In the deep layers of the mantle, a hot ...
View Answer

Convergent boundaries produce a relatively low number of earthquakes compared to other boundaries.

Correct Answer
verified

Which process creates island chains with active volcanoes at one end?

Correct Answer
verified

Correct Answer
verified