Question 1

What occurs at mid-ocean ridges?

Accepted Answer

A)  oceanic crust is destroyed 
B)  continental crust is destroyed 
C)  oceanic crust is created 
D)  continental crust is created 
E)  all crust is destroyed by magma 
A)  oceanic crust is destroyed 
B)  continental crust is destroyed 
C)  oceanic crust is created 
D)  continental crust is created 
E)  all crust is destroyed by magma

Question 2

Which way are the plates moving in this figure?

Accepted Answer

A)  away from each other 
B)  directly toward each other 
C)  toward each other at an angle 
D)  horizontally sliding by one another 
E)  there is no way to tell 
A)  away from each other 
B)  directly toward each other 
C)  toward each other at an angle 
D)  horizontally sliding by one another 
E)  there is no way to tell

Question 3

Select the statement that best describes how the process of plate tectonics circulates materials between the asthenosphere and the lithosphere.

Accepted Answer

A)  Some asthenosphere becomes lithosphere at mid-ocean spreading centers and reenters the asthenosphere at subduction zones. 
B)  Some lithosphere becomes asthenosphere at mid-ocean spreading centers and reenters the lithosphere at subduction zones. 
C)  The materials that form the asthenosphere never mix with the materials that form the lithosphere. 
A)  Some asthenosphere becomes lithosphere at mid-ocean spreading centers and reenters the asthenosphere at subduction zones. 
B)  Some lithosphere becomes asthenosphere at mid-ocean spreading centers and reenters the lithosphere at subduction zones. 
C)  The materials that form the asthenosphere never mix with the materials that form the lithosphere.

Question 4

On the accompanying figure, which letter is over the oldest oceanic crust?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 5

The main reason why the hypothesis of continental drift was not widely accepted was:

Accepted Answer

A)  The hypothesis required that the entire Earth was once frozen. 
B)  The hypothesis required long, narrow land bridges that did not exist. 
C)  There was no mechanism to move continents through the oceanic crust. 
D)  All of these were reasons the hypothesis was not widely accepted. 
A)  The hypothesis required that the entire Earth was once frozen. 
B)  The hypothesis required long, narrow land bridges that did not exist. 
C)  There was no mechanism to move continents through the oceanic crust. 
D)  All of these were reasons the hypothesis was not widely accepted.

Question 6

The Earth's magnetic field is generated by:

Accepted Answer

A)  salty water moving through the deep parts of the crust 
B)  convection currents in the asthenosphere 
C)  movement of iron and electrical currents within Earth's outer core 
D)  aligned magnetic minerals within Earth's inner core 
A)  salty water moving through the deep parts of the crust 
B)  convection currents in the asthenosphere 
C)  movement of iron and electrical currents within Earth's outer core 
D)  aligned magnetic minerals within Earth's inner core

Question 7

On this map of the South Atlantic, which letter is on an oceanic fracture zone?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 8

What are some uses of magnetic reversals?

Accepted Answer

A)  matching the patterns of reversals in a rock sequence to the magnetic timescale 
B)  studying magnetic stripes on the seafloor 
C)  calculating rates of seafloor spreading 
D)  all of these 
A)  matching the patterns of reversals in a rock sequence to the magnetic timescale 
B)  studying magnetic stripes on the seafloor 
C)  calculating rates of seafloor spreading 
D)  all of these

Question 9

Volcanoes and earthquakes:

Accepted Answer

A)  have many areas of overlap in their distributions on Earth 
B)  have few areas of overlap in their distributions on Earth 
C)  have no areas of overlap in their distributions on Earth 
A)  have many areas of overlap in their distributions on Earth 
B)  have few areas of overlap in their distributions on Earth 
C)  have no areas of overlap in their distributions on Earth

Question 10

On the accompanying map, earthquakes are least likely at locations:

Accepted Answer

A)  1, 2, and 3 
B)  1 and 4 
C)  1 and 5 
D)  2, 3, and 4 
E)  4 and 5 
A)  1, 2, and 3 
B)  1 and 4 
C)  1 and 5 
D)  2, 3, and 4 
E)  4 and 5

Question 11

The safest place for humans to live, away from volcanic activity and earthquakes, is:

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 12

This diagram shows magnetic stripes on either side of the mid-ocean ridge. How many different ages of stripes are represented in this diagram?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  6 
E)  11 
A)  2 
B)  3 
C)  4 
D)  6 
E)  11

What occurs at mid-ocean ridges?

Which way are the plates moving in this figure?

Select the statement that best describes how the process of plate tectonics circulates materials between the asthenosphere and the lithosphere.

On the accompanying figure, which letter is over the oldest oceanic crust?

The main reason why the hypothesis of continental drift was not widely accepted was:

The Earth's magnetic field is generated by:

On this map of the South Atlantic, which letter is on an oceanic fracture zone? $On this map of the South Atlantic, which letter is on an oceanic fracture zone?$

What are some uses of magnetic reversals?

Volcanoes and earthquakes:

On the accompanying map, earthquakes are least likely at locations:

The safest place for humans to live, away from volcanic activity and earthquakes, is:

This diagram shows magnetic stripes on either side of the mid-ocean ridge. How many different ages of stripes are represented in this diagram?

The Nature of Geology

Investigating Geologic Questions

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Seafloor and Continental Margins

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

Filters

Exam 3: Plate Tectonics

What occurs at mid-ocean ridges?

Which way are the plates moving in this figure?

Select the statement that best describes how the process of plate tectonics circulates materials between the asthenosphere and the lithosphere.

On the accompanying figure, which letter is over the oldest oceanic crust?

The main reason why the hypothesis of continental drift was not widely accepted was:

The Earth's magnetic field is generated by:

On this map of the South Atlantic, which letter is on an oceanic fracture zone?

What are some uses of magnetic reversals?

Volcanoes and earthquakes:

On the accompanying map, earthquakes are least likely at locations:

The safest place for humans to live, away from volcanic activity and earthquakes, is:

This diagram shows magnetic stripes on either side of the mid-ocean ridge. How many different ages of stripes are represented in this diagram?

The Nature of Geology

Investigating Geologic Questions

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Seafloor and Continental Margins

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

Filters

On this map of the South Atlantic, which letter is on an oceanic fracture zone? $On this map of the South Atlantic, which letter is on an oceanic fracture zone?$