Question 1

The largest lithospheric plate is the_______ .

Accepted Answer

A)  Caribbean Plate 
B)  Pacific Plate 
C)  Eurasian Plate 
D)  North American Plate 
A)  Caribbean Plate 
B)  Pacific Plate 
C)  Eurasian Plate 
D)  North American Plate B

Question 2

Mount St. Helens and the other Cascade volcanoes are_______ .

Accepted Answer

A)  a row of young, active, shield volcanoes built as western North America moved over a hot spot deep in the mantle 
B)  young, active stratovolcanoes built on a continental margin above a sinking slab of oceanic lithosphere 
C)  old, deeply eroded, basaltic shield volcanoes built when western North America was over the present- day site of the Hawaiian hot spot 
D)  old, deeply eroded stratovolcanoes built before the Pacific Ocean existed 
A)  a row of young, active, shield volcanoes built as western North America moved over a hot spot deep in the mantle 
B)  young, active stratovolcanoes built on a continental margin above a sinking slab of oceanic lithosphere 
C)  old, deeply eroded, basaltic shield volcanoes built when western North America was over the present- day site of the Hawaiian hot spot 
D)  old, deeply eroded stratovolcanoes built before the Pacific Ocean existed B

Question 3

The asthenosphere is the second layer of Earth characterized by_______ .

Accepted Answer

A)  hard rocks that break 
B)  magma 
C)  soft rocks that flow easily 
D)  layers of both hard and soft rocks 
A)  hard rocks that break 
B)  magma 
C)  soft rocks that flow easily 
D)  layers of both hard and soft rocks C

Question 4

Japan and the Aleutian Islands have formed from an_______ to_______ convergent boundary.

Accepted Answer

A)  ocean; ocean 
B)  ocean; continent 
C)  continent; continent 
D)  continent; ocean 
A)  ocean; ocean 
B)  ocean; continent 
C)  continent; continent 
D)  continent; ocean

Question 5

Evidence that tensile stresses are actively pulling the lithosphere apart in an ocean ridge system is given by _______.

Accepted Answer

A)  the width of the ridge system 
B)  the height of the ridge system 
C)  the lack of thick sediments on the ridge system sea floor 
D)  the existence of a rift valley in a ridge system 
A)  the width of the ridge system 
B)  the height of the ridge system 
C)  the lack of thick sediments on the ridge system sea floor 
D)  the existence of a rift valley in a ridge system

Question 6

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Accepted Answer

A)  seafloor spreading 
B)  divergent 
C)  arc volcanoes 
D)  oceanic ridge 
A)  seafloor spreading 
B)  divergent 
C)  arc volcanoes 
D)  oceanic ridge

Question 7

When two plates move together, lithosphere is_______ .

Accepted Answer

A)  destroyed 
B)  created 
C)  melted 
D)  not changed 
A)  destroyed 
B)  created 
C)  melted 
D)  not changed

Question 8

The Himalayas formed as a result of _______.

Accepted Answer

A)  a hot spot 
B)  a continent- continent convergence 
C)  an ocean- continent convergence 
D)  an ocean- ocean convergence 
A)  a hot spot 
B)  a continent- continent convergence 
C)  an ocean- continent convergence 
D)  an ocean- ocean convergence

Question 9

The Hawaiian Island- Emperor Seamount chain formed as a result of_______ .

Accepted Answer

A)  divergent plate boundary activities 
B)  convergent plate boundary activities 
C)  hot spot activities 
D)  transform plate boundary activities 
A)  divergent plate boundary activities 
B)  convergent plate boundary activities 
C)  hot spot activities 
D)  transform plate boundary activities

Question 10

Briefly describe some possible future changes in the shape and size of the African Plate.

Accepted Answer

The African Plate is mostly bounded by d

Question 11

Lithosphere is _______at transform plate boundaries.

Accepted Answer

A)  destroyed 
B)  generated 
C)  subducted 
D)  neither generated nor destroyed 
A)  destroyed 
B)  generated 
C)  subducted 
D)  neither generated nor destroyed

Question 12

Which of the following is considered the most important driving factor for Plate Tectonics?

Accepted Answer

A)  whole mantle 
B)  slab pull 
C)  ridge push 
D)  layer cake 
A)  whole mantle 
B)  slab pull 
C)  ridge push 
D)  layer cake

Question 13

The below diagram shows the Indian subcontinent as it collided with Asia:   This is an example of the formation of a _______.

Accepted Answer

A)  collisional mountain chain 
B)  volcanic island arc 
C)  continental volcanic arc 
D)  transform fault 
A)  collisional mountain chain 
B)  volcanic island arc 
C)  continental volcanic arc 
D)  transform fault

Question 14

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Accepted Answer

A)  fit of the continents 
B)  paleomagnetism 
C)  ancient climates 
D)  fossil evidence 
A)  fit of the continents 
B)  paleomagnetism 
C)  ancient climates 
D)  fossil evidence

Question 15

_______was were. never proposed as evidence supporting the existence of Pangaea.

Accepted Answer

A)  Islands of Precambrian rocks along the Mid- Atlantic Ridge 
B)  Geometrical fit between South America and Africa 
C)  Similar fossils on different continents 
D)  Late Paleozoic glacial features 
A)  Islands of Precambrian rocks along the Mid- Atlantic Ridge 
B)  Geometrical fit between South America and Africa 
C)  Similar fossils on different continents 
D)  Late Paleozoic glacial features

Question 16

Briefly explain why the oceanic ridges are higher than the surrounding ocean basins?

Accepted Answer

The oceanic ridges are hot because they

Question 17

Which convection model suggests that cold oceanic lithosphere sinks to great depths?

Accepted Answer

A)  whole mantle 
B)  layer cake 
C)  slab pull 
D)  ridge push 
A)  whole mantle 
B)  layer cake 
C)  slab pull 
D)  ridge push

Question 18

Some _______ rich minerals will align themselves with the existing magnetic field when they from a magma.

Accepted Answer

A)  silica; warm 
B)  iron; cool 
C)  iron; warm 
D)  silica; cool 
A)  silica; warm 
B)  iron; cool 
C)  iron; warm 
D)  silica; cool

Question 19

Glossopteris, a fossil found in Africa, Australia, India, South America, and Antarctica, is significant because _______ .

Accepted Answer

A)  it demonstrated that wind could not have dispersed the organism over such a large area 
B)  it demonstrated that water could not have dispersed the organism over such a large area 
C)  it demonstrated that all of the continents where the fossil is found must have been cold when the organism was alive 
D)  it demonstrated that all of the continents where the fossil is found must have been tropical when the organism was alive 
A)  it demonstrated that wind could not have dispersed the organism over such a large area 
B)  it demonstrated that water could not have dispersed the organism over such a large area 
C)  it demonstrated that all of the continents where the fossil is found must have been cold when the organism was alive 
D)  it demonstrated that all of the continents where the fossil is found must have been tropical when the organism was alive

Question 20

In Wegener's time, scientists thought that the occurrence of fossils of the same organism in two different, disconnected continents was proof that_______ .

Accepted Answer

A)  birds flew between the continents and carried the organisms with them 
B)  the weather patterns had changed over time such that some organisms could be blown by the wind from one place to another 
C)  there were icebergs in the Atlantic Ocean that could carry organisms from Africa to South America 
D)  there had once been land bridges separating the continents 
A)  birds flew between the continents and carried the organisms with them 
B)  the weather patterns had changed over time such that some organisms could be blown by the wind from one place to another 
C)  there were icebergs in the Atlantic Ocean that could carry organisms from Africa to South America 
D)  there had once been land bridges separating the continents

Exam 4: Plate Tectonics: a Scientific Revolution Unfolds

The largest lithospheric plate is the_______ .

Mount St. Helens and the other Cascade volcanoes are_______ .

The asthenosphere is the second layer of Earth characterized by_______ .

Japan and the Aleutian Islands have formed from an_______ to_______ convergent boundary.

Evidence that tensile stresses are actively pulling the lithosphere apart in an ocean ridge system is given by _______.

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

When two plates move together, lithosphere is_______ .

The Himalayas formed as a result of _______.

The Hawaiian Island- Emperor Seamount chain formed as a result of_______ .

Briefly describe some possible future changes in the shape and size of the African Plate.

Lithosphere is _______at transform plate boundaries.

Which of the following is considered the most important driving factor for Plate Tectonics?

The below diagram shows the Indian subcontinent as it collided with Asia: This is an example of the formation of a _______.

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

_______was were. never proposed as evidence supporting the existence of Pangaea.

Briefly explain why the oceanic ridges are higher than the surrounding ocean basins?

Which convection model suggests that cold oceanic lithosphere sinks to great depths?

Some _______ rich minerals will align themselves with the existing magnetic field when they from a magma.

Glossopteris, a fossil found in Africa, Australia, India, South America, and Antarctica, is significant because _______ .

In Wegener's time, scientists thought that the occurrence of fossils of the same organism in two different, disconnected continents was proof that_______ .

Introduction to Earth Science

Matter and Minerals

Rocks: Materials of the Solid Earth

Earthquakes and Earths Interior

Volcanoes and Other Igneous Activity

Crustal Deformation and Mountain Building

Weathering, Soil, and Mass Movement

Running Water and Groundwater

Glaciers, Deserts, and Wind

Geologic Time

Earths Evolution Through Geologic Time

The Ocean Floor

Ocean Water and Ocean Life

The Dynamic Ocean

The Atmosphere: Composition, Structure, and Temperature

Moisture, Clouds, and Precipitation

Air Pressure and Wind

Weather Patterns and Severe Storms

World Climates and Global Climate Change

Origins of Modern Astronomy

Touring Our Solar System

Light, Telescopes, and the Sun

Beyond Our Solar System

Filters

Japan and the Aleutian Islands have formed from an_ to_ convergent boundary.