Question 1

Which of the following statements about Earth's core is false?

Accepted Answer

A)  It is composed primarily of iron. 
B)  The inner core is believed to be liquid and the outer core solid. 
C)  Temperatures in the core reach several thousand degrees. 
D)  Temperatures and pressures are higher in the inner core than in the outer core. 
A)  It is composed primarily of iron. 
B)  The inner core is believed to be liquid and the outer core solid. 
C)  Temperatures in the core reach several thousand degrees. 
D)  Temperatures and pressures are higher in the inner core than in the outer core. B

Question 2

Glaciers that once covered the Hudson Bay area melted 8,000 years ago. As a result of this, the bay is gradually rising. In another 10,000 years or so, it will have risen above sea level and become dry. This process can best be considered an example of

Accepted Answer

A)  catastrophism. 
B)  isostasy. 
C)  accretion. 
D)  orogenesis. 
A)  catastrophism. 
B)  isostasy. 
C)  accretion. 
D)  orogenesis. B

Question 3

Which of the following is false regarding Earth's magnetic field?

Accepted Answer

A)  It causes magnetic particles in cooling magma to align with magnetic field lines. 
B)  Transition periods, during which reversals occur, last an average of about 4000 to 8000 years. 
C)  Earth's magnetic field will probably reverse in the next few thousand years. 
D)  A given field orientation can last billions of years. 
A)  It causes magnetic particles in cooling magma to align with magnetic field lines. 
B)  Transition periods, during which reversals occur, last an average of about 4000 to 8000 years. 
C)  Earth's magnetic field will probably reverse in the next few thousand years. 
D)  A given field orientation can last billions of years. D

Question 4

The Hawaiian Islands were formed as a result of

Accepted Answer

A)  a rising plume of magma from the mantle. 
B)  an oceanic-oceanic plate collision. 
C)  a continental-oceanic plate collision. 
D)  activity along a midocean ridge. 
A)  a rising plume of magma from the mantle. 
B)  an oceanic-oceanic plate collision. 
C)  a continental-oceanic plate collision. 
D)  activity along a midocean ridge.

Question 5

The boundary between the crust and the rest of the lithospheric upper mantle is a discontinuity known as the

Accepted Answer

A)  Gutenberg. 
B)  mantle. 
C)  Moho. 
D)  lithospheric layer. 
A)  Gutenberg. 
B)  mantle. 
C)  Moho. 
D)  lithospheric layer.

Question 6

A rock made of clay particles is most likely to have formed in which of the following environments?

Accepted Answer

A)  beach 
B)  desert 
C)  swamp 
A)  beach 
B)  desert 
C)  swamp

Question 7

Which of the following is $\underline {\text { exogenic }}$in nature?

Accepted Answer

A)  earthquakes 
B)  volcanism 
C)  flows of heat and materials in the mantle 
D)  weathering 
A)  earthquakes 
B)  volcanism 
C)  flows of heat and materials in the mantle 
D)  weathering

Question 8

The uppermost mantle is a plastic, whereas the aesthenosphere is rigid.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is true of divergent plate boundaries?

Accepted Answer

A)  Rifting occurs there. 
B)  Tensional forces exist there. 
C)  New ocean crust can be created there. 
D)  all of these 
E)  none of these 
A)  Rifting occurs there. 
B)  Tensional forces exist there. 
C)  New ocean crust can be created there. 
D)  all of these 
E)  none of these

Question 10

Earthquake and volcanic occurrences do not correlate well with crustal plate boundaries.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is the fuel for continental drift and plate tectonics?

Accepted Answer

A)  nuclear fusion 
B)  radioactive decay 
C)  solar energy 
D)  chemical reactions in Earth's core 
A)  nuclear fusion 
B)  radioactive decay 
C)  solar energy 
D)  chemical reactions in Earth's core

Question 12

Convergent plate boundaries are characteristic of

Accepted Answer

A)  sea-floor spreading centers. 
B)  collision zones between plates. 
C)  lateral motions of plates. 
D)  all plate boundaries. 
A)  sea-floor spreading centers. 
B)  collision zones between plates. 
C)  lateral motions of plates. 
D)  all plate boundaries.

Question 13

Earth's magnetic field

Accepted Answer

A)  is variable, and it has phased to zero some nine times during the past 4 million years. 
B)  is constant in its intensity. 
C)  remains a mystery as to its cause. 
D)  is principally generated in the inner core. 
A)  is variable, and it has phased to zero some nine times during the past 4 million years. 
B)  is constant in its intensity. 
C)  remains a mystery as to its cause. 
D)  is principally generated in the inner core.

Question 14

Coal is a fossil fuel formed from

Accepted Answer

A)  dead marine organisms. 
B)  plants. 
C)  metamorphosed mafic minerals. 
D)  blue-green algae. 
A)  dead marine organisms. 
B)  plants. 
C)  metamorphosed mafic minerals. 
D)  blue-green algae.

Question 15

Knowledge of Earth's interior is derived from

Accepted Answer

A)  direct sampling of the interior using deep-test wells. 
B)  work in Earth's deepest caverns and caves. 
C)  indirect evidence involving the analysis of seismic waves. 
D)  historic and prehistoric records. 
A)  direct sampling of the interior using deep-test wells. 
B)  work in Earth's deepest caverns and caves. 
C)  indirect evidence involving the analysis of seismic waves. 
D)  historic and prehistoric records.

Question 16

Pangaea is currently dated at

Accepted Answer

A)  4.6 billion years ago. 
B)  about half the timespan of Earth's existence. 
C)  225 to 200 million years ago. 
D)  65 million years ago. 
E)  the beginning of the Holocene. 
A)  4.6 billion years ago. 
B)  about half the timespan of Earth's existence. 
C)  225 to 200 million years ago. 
D)  65 million years ago. 
E)  the beginning of the Holocene.

Question 17

The ocean floor is a maximum of about 200 million years in age because

Accepted Answer

A)  Earth is only 200 million years old. 
B)  the ocean floor is pushed up onto continental material during plate collisions. 
C)  the ocean floor subducts during plate collisions. 
D)  hot spots continuously destroy the ocean floor. 
E)  None of the above-the ocean floor is 3.96 billion years old. 
A)  Earth is only 200 million years old. 
B)  the ocean floor is pushed up onto continental material during plate collisions. 
C)  the ocean floor subducts during plate collisions. 
D)  hot spots continuously destroy the ocean floor. 
E)  None of the above-the ocean floor is 3.96 billion years old.

Question 18

With $\underline {\text { increasing }}$ depth, the mantle becomes ________ due to greater ________.

Accepted Answer

A)  more plastic; pressures 
B)  more plastic; temperatures 
C)  stiffer; pressures 
D)  stiffer; temperatures 
A)  more plastic; pressures 
B)  more plastic; temperatures 
C)  stiffer; pressures 
D)  stiffer; temperatures

Question 19

Earth's interior has been mapped using seismic waves.

Accepted Answer

A) True 
 B)False

Question 20

The heat that melted the early Earth was derived from

Accepted Answer

A)  nuclear fusion. 
B)  radioactive decay. 
C)  chemical reactions. 
D)  sunlight. 
A)  nuclear fusion. 
B)  radioactive decay. 
C)  chemical reactions. 
D)  sunlight.

Which of the following statements about Earth's core is false?

Glaciers that once covered the Hudson Bay area melted 8,000 years ago. As a result of this, the bay is gradually rising. In another 10,000 years or so, it will have risen above sea level and become dry. This process can best be considered an example of

Which of the following is false regarding Earth's magnetic field?

The Hawaiian Islands were formed as a result of

The boundary between the crust and the rest of the lithospheric upper mantle is a discontinuity known as the

A rock made of clay particles is most likely to have formed in which of the following environments?

Which of the following is $\underline {\text { exogenic }}$ in nature?

The uppermost mantle is a plastic, whereas the aesthenosphere is rigid.

Which of the following is true of divergent plate boundaries?

Earthquake and volcanic occurrences do not correlate well with crustal plate boundaries.

Which of the following is the fuel for continental drift and plate tectonics?

Convergent plate boundaries are characteristic of

Earth's magnetic field

Coal is a fossil fuel formed from

Knowledge of Earth's interior is derived from

Pangaea is currently dated at

The ocean floor is a maximum of about 200 million years in age because

With $\underline {\text { increasing }}$ depth, the mantle becomes due to greater .

Earth's interior has been mapped using seismic waves.

The heat that melted the early Earth was derived from

Foundations of Geography

Solar Energy, Seasons, and the Atmosphere

Atmospheric Energy and Global Temperatures

Atmospheric and Oceanic Circulation

Atmospheric Water and Weather

Water Resources

Global Climate Systems

Earthquakes and Volcanoes

Weathering, Karst Landscapes, and Mass Movement

Wind Processes and Desert Landscapes

The Oceans, Coastal Processes, and Landforms

Glacial and Penglacial Landscapes

The Geography of Soils

Ecosystems and Biomes

Earth and the Human Denominator

Filters

Exam 8: The Dynamic Planet

Which of the following statements about Earth's core is false?

Glaciers that once covered the Hudson Bay area melted 8,000 years ago. As a result of this, the bay is gradually rising. In another 10,000 years or so, it will have risen above sea level and become dry. This process can best be considered an example of

Which of the following is false regarding Earth's magnetic field?

The Hawaiian Islands were formed as a result of

The boundary between the crust and the rest of the lithospheric upper mantle is a discontinuity known as the

A rock made of clay particles is most likely to have formed in which of the following environments?

Which of the following is exogenic ‾\underline {\text { exogenic }} exogenic ​ in nature?

The uppermost mantle is a plastic, whereas the aesthenosphere is rigid.

Which of the following is true of divergent plate boundaries?

Earthquake and volcanic occurrences do not correlate well with crustal plate boundaries.

Which of the following is the fuel for continental drift and plate tectonics?

Convergent plate boundaries are characteristic of

Earth's magnetic field

Coal is a fossil fuel formed from

Knowledge of Earth's interior is derived from

Pangaea is currently dated at

The ocean floor is a maximum of about 200 million years in age because

With increasing ‾\underline {\text { increasing }} increasing ​ depth, the mantle becomes ________ due to greater ________.

Earth's interior has been mapped using seismic waves.

The heat that melted the early Earth was derived from

Foundations of Geography

Solar Energy, Seasons, and the Atmosphere

Atmospheric Energy and Global Temperatures

Atmospheric and Oceanic Circulation

Atmospheric Water and Weather

Water Resources

Global Climate Systems

Earthquakes and Volcanoes

Weathering, Karst Landscapes, and Mass Movement

Wind Processes and Desert Landscapes

The Oceans, Coastal Processes, and Landforms

Glacial and Penglacial Landscapes

The Geography of Soils

Ecosystems and Biomes

Earth and the Human Denominator

Filters

Which of the following is $\underline {\text { exogenic }}$ in nature?

With $\underline {\text { increasing }}$ depth, the mantle becomes due to greater .