Question 1

Thermal convection cells in the mantle cause seafloor spreading.

Accepted Answer

A) True 
 B)False

Question 2

The eastern margin of the Ring of Fire is dangerous but is not a threat to human life.

Accepted Answer

A) True 
 B)False

Question 3

What is one of the most convincing arguments for the supercontinent cycle hypothesis?

Accepted Answer

the "surprising regularity"of

Question 4

Where are two sets of mountain ranges located which would be continuous if the continents on either side of the Atlantic are joined?

Accepted Answer

South Africa and Bra

Question 5

Briefly explain why the existence of guyots indicates that the sea floor is geologically young and that oceanic crust moves away from spreading ridges over time.

Accepted Answer

These seamounts have flat tops due to er

Question 6

Which present-day continents belonged to the northern supercontinent first proposed by Alexander du Toit?

Accepted Answer

North America, Green

Question 7

That the oceanic crust is geologically young and the parallel magnetic striping pattern of basalts is symmetrical about oceanic ridges was conclusively shown by

Accepted Answer

A)  radiometric dating of oceanic basalts and sequences from continents. 
B)  the unusually thin layer of oceanic sediments and the ages of contained fossils. 
C)  the existence of the same patterns in all ocean basins. 
D)  A and B 
E)  all of the above 
A)  radiometric dating of oceanic basalts and sequences from continents. 
B)  the unusually thin layer of oceanic sediments and the ages of contained fossils. 
C)  the existence of the same patterns in all ocean basins. 
D)  A and B 
E)  all of the above

Question 8

The age and distribution of the Hawaiian Islands - Emperor Seamount chain show that the absolute motion of the Pacific Plate from the past to the present was

Accepted Answer

A)  first north-northwesterly, then west-northwesterly. 
B)  first south-southeasterly, then east-southeasterly. 
C)  first north-northeasterly, then west-northeasterly. 
D)  first south-southwesterly, then west-southwesterly. 
E)  first north-northwesterly, then south-southeasterly. 
A)  first north-northwesterly, then west-northwesterly. 
B)  first south-southeasterly, then east-southeasterly. 
C)  first north-northeasterly, then west-northeasterly. 
D)  first south-southwesterly, then west-southwesterly. 
E)  first north-northwesterly, then south-southeasterly.

Question 9

What is the primary cause of continental movement, according to the hypothesis of sea-floor spreading?

Accepted Answer

the format

Question 10

The first scientist to suggest a link between Africa and South America based on fossils was

Accepted Answer

A)  Frank Taylor, 1910. 
B)  Edward Suess, 1855. 
C)  Snider-Pellegrini, 1858. 
D)  Harry Hess, 1962. 
E)  Alfred Wegener, 1912. 
A)  Frank Taylor, 1910. 
B)  Edward Suess, 1855. 
C)  Snider-Pellegrini, 1858. 
D)  Harry Hess, 1962. 
E)  Alfred Wegener, 1912.

Question 11

What was the major difference between sea-floor spreading and continental drift?

Accepted Answer

with sea-floor spreading, cont

Question 12

The Red Sea and Gulf of Aden are examples of basins between converging plates (African and Arabian).

Accepted Answer

A) True 
 B)False

Question 13

Old, cold and dense oceanic crust is destroyed by___________ along___________ plate boundaries.

Accepted Answer

subduction

Question 14

The plate tectonic theory is continually tested and refined even to present day.

Accepted Answer

A) True 
 B)False

Question 15

Give an example of a back-arc basin.

Accepted Answer

The Sea of

Question 16

New crust is formed along___________ ___________ .

Accepted Answer

The answer of New crust is formed along___________ ___________ ....

Question 17

A transform plate boundary may connect

Accepted Answer

A)  a spreading ridge and subduction zone. 
B)  two spreading ridges. 
C)  two subduction zones. 
D)  A and C 
E)  all of the above 
A)  a spreading ridge and subduction zone. 
B)  two spreading ridges. 
C)  two subduction zones. 
D)  A and C 
E)  all of the above

Question 18

At which type(s) of boundary(-ies) can we expect to have volcanoes?

Accepted Answer

divergent

Question 19

What is the origin of the magma which is extruded at spreading ridges?

Accepted Answer

It forms b

Question 20

In plate tectonic theory, the lithosphere

Accepted Answer

A)  is composed of oceanic and continental crust and upper mantle. 
B)  rests upon the buoyant asthenosphere. 
C)  is destroyed as fast as it is created. 
D)  moves over, and with, the asthenosphere. 
E)  none of the above 
A)  is composed of oceanic and continental crust and upper mantle. 
B)  rests upon the buoyant asthenosphere. 
C)  is destroyed as fast as it is created. 
D)  moves over, and with, the asthenosphere. 
E)  none of the above

Thermal convection cells in the mantle cause seafloor spreading.

The eastern margin of the Ring of Fire is dangerous but is not a threat to human life.

What is one of the most convincing arguments for the supercontinent cycle hypothesis?

Where are two sets of mountain ranges located which would be continuous if the continents on either side of the Atlantic are joined?

Briefly explain why the existence of guyots indicates that the sea floor is geologically young and that oceanic crust moves away from spreading ridges over time.

Which present-day continents belonged to the northern supercontinent first proposed by Alexander du Toit?

That the oceanic crust is geologically young and the parallel magnetic striping pattern of basalts is symmetrical about oceanic ridges was conclusively shown by

The age and distribution of the Hawaiian Islands - Emperor Seamount chain show that the absolute motion of the Pacific Plate from the past to the present was

What is the primary cause of continental movement, according to the hypothesis of sea-floor spreading?

The first scientist to suggest a link between Africa and South America based on fossils was

What was the major difference between sea-floor spreading and continental drift?

The Red Sea and Gulf of Aden are examples of basins between converging plates (African and Arabian).

Old, cold and dense oceanic crust is destroyed by_ along_ plate boundaries.

The plate tectonic theory is continually tested and refined even to present day.

Give an example of a back-arc basin.

New crust is formed along_ _ .

A transform plate boundary may connect

At which type(s) of boundary(-ies) can we expect to have volcanoes?

What is the origin of the magma which is extruded at spreading ridges?

In plate tectonic theory, the lithosphere

Understanding Earth: A Dynamic and Evolving Planet

Minerals-The Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Erosion, and Soil

Sediment and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time: Concepts and Principles

Earthquakes

Earths Interior

The Seafloor

Deformation, Mountain Building, and the Evolution of Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Winds and Deserts

Shorelines and Shoreline Processes

Geology and Humanity

Filters

Exam 2: Plate Tectonics: A Unifying Theory

Thermal convection cells in the mantle cause seafloor spreading.

The eastern margin of the Ring of Fire is dangerous but is not a threat to human life.

What is one of the most convincing arguments for the supercontinent cycle hypothesis?

Where are two sets of mountain ranges located which would be continuous if the continents on either side of the Atlantic are joined?

Briefly explain why the existence of guyots indicates that the sea floor is geologically young and that oceanic crust moves away from spreading ridges over time.

Which present-day continents belonged to the northern supercontinent first proposed by Alexander du Toit?

That the oceanic crust is geologically young and the parallel magnetic striping pattern of basalts is symmetrical about oceanic ridges was conclusively shown by

The age and distribution of the Hawaiian Islands - Emperor Seamount chain show that the absolute motion of the Pacific Plate from the past to the present was

What is the primary cause of continental movement, according to the hypothesis of sea-floor spreading?

The first scientist to suggest a link between Africa and South America based on fossils was

What was the major difference between sea-floor spreading and continental drift?

The Red Sea and Gulf of Aden are examples of basins between converging plates (African and Arabian).

Old, cold and dense oceanic crust is destroyed by___________ along___________ plate boundaries.

The plate tectonic theory is continually tested and refined even to present day.

Give an example of a back-arc basin.

New crust is formed along___________ ___________ .

A transform plate boundary may connect

At which type(s) of boundary(-ies) can we expect to have volcanoes?

What is the origin of the magma which is extruded at spreading ridges?

In plate tectonic theory, the lithosphere

Understanding Earth: A Dynamic and Evolving Planet

Minerals-The Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Erosion, and Soil

Sediment and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time: Concepts and Principles

Earthquakes

Earths Interior

The Seafloor

Deformation, Mountain Building, and the Evolution of Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Winds and Deserts

Shorelines and Shoreline Processes

Geology and Humanity

Filters

Old, cold and dense oceanic crust is destroyed by_ along_ plate boundaries.

New crust is formed along_ _ .