Question 1

How is it that the deepest earthquakes do not go beyond a few tens of kilometers deep, except in the area of subduction zones where they may originate more than 100 kilometers down?

Accepted Answer

The answer of How is it that the deepest earthquakes...

Question 2

The only currently active plate boundary within the continental United States is the

Accepted Answer

A)  Marianas Trench. 
B)  East-Pacific Rise. 
C)  New Madrid Fault. 
D)  San Andreas Fault. 
E)  Mid-Atlantic Ridge.

Question 3

Which formula would you use to determine the age of the Atlantic Ocean basin?

Accepted Answer

A)  E = mc2 
B)  D = R x T 
C)  F = M x A 
D)  A = $\pi$ r2 
E)  P = N x R x T

Question 4

Describe the type of land formation that would be created at each of these plate boundaries and the processes involved: continental divergent; ocean divergent; continental convergent; or ocean convergent.

Accepted Answer

The answer of Describe the type of land formation that...

Question 5

Subduction zone regions are commonly the locations of

Accepted Answer

A)  active volcanoes. 
B)  the disappearance of old plate material. 
C)  the world's highest mountains. 
D)  severe earthquakes. 
E)  all of these are correct.

Question 6

Most mountains have not eroded to a flat plain over time because:

Accepted Answer

A)  they are buried under a thin veneer of soil. 
B)  new mountains constantly emerge through rifts in the crustal material of oceans and continents. 
C)  ozone depletion has decreased the rate of erosion. 
D)  the mantle has a constant supply of granitic material 
E)  mountains are reformed by tectonic uplift that is greater than or equal to the erosional forces.

Question 7

What is the origin of earthquake energy?

Accepted Answer

The answer of What is the origin of earthquake energy?...

Question 8

The Marianas Trench is the result of two convergent plates - with no continents on either plate - forming a subduction zone. Knowing these facts, what else can you say about the Marianas Trench?

Accepted Answer

The answer of The Marianas Trench is the result of...

Question 9

Which of the following was used as evidence for plate tectonics?

Accepted Answer

A)  topographic profiles of the ocean floors 
B)  maps on rock magnetism 
C)  data classifying rocks by age 
D)  sea floor spreading 
E)  all of these are correct

Question 10

Which of the following is an example of a continental convergent plate boundary?

Accepted Answer

A)  the East African Rift Valley 
B)  the San Andreas Fault 
C)  the Atlantic east coast fall line 
D)  Mount St. Helens in the northwest United States 
E)  the Himalayan Mountains

Exam 17: Plate Tectonics: Can We Predict Destructive Earthquakes