Question 1

The two major types of seismic waves are ____________________ waves and ____________________ waves.

Accepted Answer

The answer of The two major types of seismic waves...

Question 2

Only 5% of all earthquakes occur within the:

Accepted Answer

A)  Mediterranean-Asiatic belt. 
B)  circum-Mediterranean belt. 
C)  interiors of plates and mid-oceanic ridges. 
D)  passive margins of continents and mid-oceanic ridges. 
E)  shields of continents and mid-oceanic ridges.

Question 3

What are two major and very useful differences between P- and S-waves?

Accepted Answer

The answer of What are two major and very useful...

Question 4

The major discontinuity that occurs at a depth of 2,900 km below Earth's surface is the:

Accepted Answer

A)  low-velocity zone. 
B)  Moho. 
C)  inner core-outer core transition. 
D)  core-mantle boundary. 
E)  none of the above

Question 5

We know that the mantle is not molten because P-waves can travel through it.

Accepted Answer

A) True 
 B)False

Question 6

Why are earthquakes more likely to occur in Tokyo, Anchorage, and Los Angeles than they are in New York, London, or Paris?

Accepted Answer

The answer of Why are earthquakes more likely to occur...

Question 7

According to the elastic rebound theory:

Accepted Answer

A)  rocks will bend before they break. 
B)  rocks will snap back into their original shape after faulting. 
C)  rocks will break when their capacity to store energy of deformation has been exceeded. 
D)  rocks will bend before they break AND will snap back to their original shape after faulting. 
E)  rocks will bend before they break, will snap back to their original shape after faulting, AND will break when their capacity to store energy of deformation has been exceeded.

Question 8

What causes earthquakes?

Accepted Answer

The answer of What causes earthquakes?...

Question 9

The odd behavior of many kinds of animals is a scientifically accepted method used to predict earthquakes.

Accepted Answer

A) True 
 B)False

Question 10

What is the biggest cause of Earth's internal heat?

Accepted Answer

The answer of What is the biggest cause of Earth's...

Question 11

What happens to P- waves and S-waves when they encounter the core-mantle boundary, and what does this change in behavior indicate about the core?

Accepted Answer

The answer of What happens to P- waves and S-waves...

Question 12

Why are the paths of seismic waves curved?

Accepted Answer

The answer of Why are the paths of seismic waves...

Question 13

The S-wave shadow zone indicates that S-waves cannot be transmitted through the mantle.

Accepted Answer

A) True 
 B)False

Question 14

The ____________________ of an earthquake on the Richter Scale is determined by measuring the ____________________ of the largest recorded seismic wave.

Accepted Answer

The answer of The ____________________ of an earthquake on the...

Question 15

Besides the distance to the epicenter of an earthquake, what are two other things that a seismograph can tell us?

Accepted Answer

The answer of Besides the distance to the epicenter of...

Question 16

If you could drill from the outer surface of Earth all the way to the center, you would pass through the major divisions of Earth: the ____________________, the ____________________, and finally the ____________________.

Accepted Answer

The answer of If you could drill from the outer...

Question 17

The temperature range at the base of the crust is:

Accepted Answer

A)  100 to 250 ° C. 
B)  250 to 550 ° C. 
C)  500 to 800 ° C. 
D)  800 to 1,200 ° C. 
E)  1,000 to 1500 ° C.

Question 18

What are the differences between P-waves and S-waves?

Accepted Answer

The answer of What are the differences between P-waves and...

Question 19

Why are all intermediate- to deep-focus earthquakes generated at convergent plate boundaries?

Accepted Answer

The answer of Why are all intermediate- to deep-focus earthquakes...

Question 20

The structural layer that the P- and S-wave low-velocity zone in the upper part of the mantle closely corresponds to is the ____________________.

Accepted Answer

The answer of The structural layer that the P- and...

Exam 8: Earthquakes and Earths Interior

The two major types of seismic waves are waves and waves.

Only 5% of all earthquakes occur within the:

What are two major and very useful differences between P- and S-waves?

The major discontinuity that occurs at a depth of 2,900 km below Earth's surface is the:

We know that the mantle is not molten because P-waves can travel through it.

Why are earthquakes more likely to occur in Tokyo, Anchorage, and Los Angeles than they are in New York, London, or Paris?

According to the elastic rebound theory:

What causes earthquakes?

The odd behavior of many kinds of animals is a scientifically accepted method used to predict earthquakes.

What is the biggest cause of Earth's internal heat?

What happens to P- waves and S-waves when they encounter the core-mantle boundary, and what does this change in behavior indicate about the core?

Why are the paths of seismic waves curved?

The S-wave shadow zone indicates that S-waves cannot be transmitted through the mantle.

The of an earthquake on the Richter Scale is determined by measuring the of the largest recorded seismic wave.

Besides the distance to the epicenter of an earthquake, what are two other things that a seismograph can tell us?

If you could drill from the outer surface of Earth all the way to the center, you would pass through the major divisions of Earth: the , the , and finally the .

The temperature range at the base of the crust is:

What are the differences between P-waves and S-waves?

Why are all intermediate- to deep-focus earthquakes generated at convergent plate boundaries?

The structural layer that the P- and S-wave low-velocity zone in the upper part of the mantle closely corresponds to is the ____________________.