Question 1

New oceanic crust is formed at mid-ocean ridges.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following layers of Earth is liquid and is responsible for producing Earth's magnetic field?

Accepted Answer

A) Inner core. 
B) Outer core. 
C) Lower mantle. 
D) Aesthenosphere. 
A) Inner core. 
B) Outer core. 
C) Lower mantle. 
D) Aesthenosphere.

Question 3

What does the presence of 180-million-year-old salt domes in the Gulf Coast region of the United States indicate?

Accepted Answer

A) The area was once volcanically active. 
B) The area was subjected to plate collisions which caused metamorphism to occur. 
C) Subsidence is now occurring due to the withdrawal of magma from the region. 
D) A sea used to cover the area but subsequently evaporated. 
A) The area was once volcanically active. 
B) The area was subjected to plate collisions which caused metamorphism to occur. 
C) Subsidence is now occurring due to the withdrawal of magma from the region. 
D) A sea used to cover the area but subsequently evaporated.

Question 4

Which best describes the assumptions of Uniformitarianism?

Accepted Answer

A) Earth is quite young and is shaped by dramatic events. 
B) Catastrophic episodes have regularly occurred. 
C) The same physical processes we see today are a key to understanding the processes that have been operating throughout geologic time. 
D) Mountains,plains,and canyons formed by catastrophic events. 
A) Earth is quite young and is shaped by dramatic events. 
B) Catastrophic episodes have regularly occurred. 
C) The same physical processes we see today are a key to understanding the processes that have been operating throughout geologic time. 
D) Mountains,plains,and canyons formed by catastrophic events.

Question 5

The transition zone from the upper mantle to the crust is known as which discontinuity?

Accepted Answer

A) Gutenberg. 
B) Mohorovičić. 
C) Asthensosphere. 
D) Lithosphere. 
A) Gutenberg. 
B) Mohorovičić. 
C) Asthensosphere. 
D) Lithosphere.

Question 6

At which of the following locations is new ocean crust being formed?

Accepted Answer

A) Oceanic rift zones. 
B) Along collision zones between two continents. 
C) Along collision zones between two oceanic plates. 
D) In oceanic trenches. 
A) Oceanic rift zones. 
B) Along collision zones between two continents. 
C) Along collision zones between two oceanic plates. 
D) In oceanic trenches.

Question 7

Which best describes mafic igneous rock,such as gabbro and basalt?

Accepted Answer

A) These are derived from magnesium and iron. 
B) These have light coloration. 
C) These are high in silicate minerals. 
D) These have a low melting temperature. 
A) These are derived from magnesium and iron. 
B) These have light coloration. 
C) These are high in silicate minerals. 
D) These have a low melting temperature.

Question 8

Which of the following is correct regarding continental drift?

Accepted Answer

A) It occurred about two billion years ago,but no longer occurs today. 
B) The term "continental drift" is now called plate tectonics. 
C) It does not occur because the crust is brittle. 
D) It is an old theory that has been essentially disproven. 
A) It occurred about two billion years ago,but no longer occurs today. 
B) The term "continental drift" is now called plate tectonics. 
C) It does not occur because the crust is brittle. 
D) It is an old theory that has been essentially disproven.

Question 9

Pangaea is currently dated at which of the following?

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. 
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.

Question 10

What evidence in the ocean floor is indicative of past magnetic reversals?

Accepted Answer

A) Magnetic particles in basalt orient with the magnetic field in force at the time the oceanic lava cooled and hardened. 
B) Isotopic analysis of ocean core sediments help determine sea floor age and this can be used to infer past magnetism. 
C) The ocean floor is uniformly old,preserving Earth's 4.6 billion history. 
D) Mantle hot spots are always oriented to the magnetic field. 
A) Magnetic particles in basalt orient with the magnetic field in force at the time the oceanic lava cooled and hardened. 
B) Isotopic analysis of ocean core sediments help determine sea floor age and this can be used to infer past magnetism. 
C) The ocean floor is uniformly old,preserving Earth's 4.6 billion history. 
D) Mantle hot spots are always oriented to the magnetic field.

Question 11

Present the main assumptions of uniformitarianism.

Accepted Answer

The present is the key to the past.Unifo

Question 12

Glaciers that once covered the Hudson Bay area melted 8000 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.Of what can this process best be considered an example?

Accepted Answer

A) Catastrophism. 
B) Isostasy. 
C) Accretion. 
D) Orogenesis. 
A) Catastrophism. 
B) Isostasy. 
C) Accretion. 
D) Orogenesis.

Question 13

The principles of buoyancy and balance,when applied to Earth's crust,helps to explain fluctuations in Earth's outer crust.What is this property called?

Accepted Answer

A) Magnetism. 
B) Moho effect. 
C) Isostasy. 
D) Orogenesis. 
A) Magnetism. 
B) Moho effect. 
C) Isostasy. 
D) Orogenesis.

Question 14

Earth's crust is roughly made up of which of the following?

Accepted Answer

A) Mantle and core material. 
B) At least 14 plates capable of movement. 
C) Strong,unbroken material. 
D) A brittle material that does not move. 
A) Mantle and core material. 
B) At least 14 plates capable of movement. 
C) Strong,unbroken material. 
D) A brittle material that does not move.

Question 15

Humans can contribute to both the endogenic and exogenic processes shape Earth.

Accepted Answer

A) True 
 B)False

Question 16

Briefly review the history of the theory of plate tectonics.What was Alfred Wegener's role? What evidence did he present? Why was this theory not widely accepted initially? What new evidence led to its later acceptance?

Accepted Answer

Plate tectonics is the theory that descr

Question 17

Which of the following is a process that can cause metamorphism?

Accepted Answer

A) Cooling. 
B) Solidification of magma. 
C) Weathering. 
D) Compression and shear. 
A) Cooling. 
B) Solidification of magma. 
C) Weathering. 
D) Compression and shear.

Question 18

Which is defined as an element or combination of elements that forms an inorganic,natural compound?

Accepted Answer

A) Tectonic rock. 
B) Granitic compound. 
C) Mineral. 
D) Molecule. 
A) Tectonic rock. 
B) Granitic compound. 
C) Mineral. 
D) Molecule.

Question 19

How does continental crust compare to oceanic crust?

Accepted Answer

A) Continental crust is thin; oceanic crust is thick. 
B) Continental crust is basalt; oceanic crust is granite. 
C) Continental crust is granite; oceanic crust is basalt. 
D) Continental crust is sima; oceanic crust is sial. 
A) Continental crust is thin; oceanic crust is thick. 
B) Continental crust is basalt; oceanic crust is granite. 
C) Continental crust is granite; oceanic crust is basalt. 
D) Continental crust is sima; oceanic crust is sial.

Question 20

At which of the following locations does subduction occur?

Accepted Answer

A) Along collision zones between two continents. 
B) At sea floor spreading zones. 
C) Above mantle hot spots. 
D) Along collision zones between continental and oceanic plates. 
A) Along collision zones between two continents. 
B) At sea floor spreading zones. 
C) Above mantle hot spots. 
D) Along collision zones between continental and oceanic plates.

New oceanic crust is formed at mid-ocean ridges.

Which of the following layers of Earth is liquid and is responsible for producing Earth's magnetic field?

What does the presence of 180-million-year-old salt domes in the Gulf Coast region of the United States indicate?

Which best describes the assumptions of Uniformitarianism?

The transition zone from the upper mantle to the crust is known as which discontinuity?

At which of the following locations is new ocean crust being formed?

Which best describes mafic igneous rock,such as gabbro and basalt?

Which of the following is correct regarding continental drift?

Pangaea is currently dated at which of the following?

What evidence in the ocean floor is indicative of past magnetic reversals?

Present the main assumptions of uniformitarianism.

Glaciers that once covered the Hudson Bay area melted 8000 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.Of what can this process best be considered an example?

The principles of buoyancy and balance,when applied to Earth's crust,helps to explain fluctuations in Earth's outer crust.What is this property called?

Earth's crust is roughly made up of which of the following?

Humans can contribute to both the endogenic and exogenic processes shape Earth.

Briefly review the history of the theory of plate tectonics.What was Alfred Wegener's role? What evidence did he present? Why was this theory not widely accepted initially? What new evidence led to its later acceptance?

Which of the following is a process that can cause metamorphism?

Which is defined as an element or combination of elements that forms an inorganic,natural compound?

How does continental crust compare to oceanic crust?

At which of the following locations does subduction occur?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters

Exam 12: The Dynamic Planet

New oceanic crust is formed at mid-ocean ridges.

Which of the following layers of Earth is liquid and is responsible for producing Earth's magnetic field?

What does the presence of 180-million-year-old salt domes in the Gulf Coast region of the United States indicate?

Which best describes the assumptions of Uniformitarianism?

The transition zone from the upper mantle to the crust is known as which discontinuity?

At which of the following locations is new ocean crust being formed?

Which best describes mafic igneous rock,such as gabbro and basalt?

Which of the following is correct regarding continental drift?

Pangaea is currently dated at which of the following?

What evidence in the ocean floor is indicative of past magnetic reversals?

Present the main assumptions of uniformitarianism.

Glaciers that once covered the Hudson Bay area melted 8000 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.Of what can this process best be considered an example?

The principles of buoyancy and balance,when applied to Earth's crust,helps to explain fluctuations in Earth's outer crust.What is this property called?

Earth's crust is roughly made up of which of the following?

Humans can contribute to both the endogenic and exogenic processes shape Earth.

Briefly review the history of the theory of plate tectonics.What was Alfred Wegener's role? What evidence did he present? Why was this theory not widely accepted initially? What new evidence led to its later acceptance?

Which of the following is a process that can cause metamorphism?

Which is defined as an element or combination of elements that forms an inorganic,natural compound?

How does continental crust compare to oceanic crust?

At which of the following locations does subduction occur?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters