Question 1

The ________ is (are) a logical evolutionary analog of the African Rift Valleys ten million years from now.

Accepted Answer

A)  Ural Mountains 
B)  San Andreas fault 
C)  Peru-Chile trench 
D)  Red Sea 
A)  Ural Mountains 
B)  San Andreas fault 
C)  Peru-Chile trench 
D)  Red Sea

Question 2

Matching. Match the plate boundary with the appropriate phrase.
-the west coast of South America

Accepted Answer

A) convergent 
B) transform 
C) divergent 
A) convergent 
B) transform 
C) divergent

Question 3

The Aleutian Islands occur at a ________.

Accepted Answer

A)  convergent boundary on a volcanic arc above a northward-subducting Pacific plate 
B)  transform boundary where North America has moved towards Alaska 
C)  divergent boundary where shield volcanoes are forming 
D)  convergent, continental margin with uplifted fault blocks, much like those of the Basin and Range Province 
A)  convergent boundary on a volcanic arc above a northward-subducting Pacific plate 
B)  transform boundary where North America has moved towards Alaska 
C)  divergent boundary where shield volcanoes are forming 
D)  convergent, continental margin with uplifted fault blocks, much like those of the Basin and Range Province

Question 4

Deep ocean trenches are surficial evidence for ________.

Accepted Answer

A)  rifting beneath a continental plate and the beginning of continental drift 
B)  sinking of oceanic lithosphere into the mantle at a subduction zone 
C)  rising of hot asthenosphere from deep in the mantle 
D)  transform faulting between an oceanic plate and a continental plate 
A)  rifting beneath a continental plate and the beginning of continental drift 
B)  sinking of oceanic lithosphere into the mantle at a subduction zone 
C)  rising of hot asthenosphere from deep in the mantle 
D)  transform faulting between an oceanic plate and a continental plate

Question 5

Pull-apart rift zones are generally associated with a ________ plate boundary.

Accepted Answer

A)  transform 
B)  divergent 
C)  convergent 
D)  all plate boundaries 
A)  transform 
B)  divergent 
C)  convergent 
D)  all plate boundaries

Question 6

Matching. Match the plate boundary with the appropriate phrase.
-characterized by arcs of stratovolcanoes and deep-ocean trenches

Accepted Answer

A) convergent 
B) transform 
C) divergent 
A) convergent 
B) transform 
C) divergent

Question 7

Which of the following statements apply to the asthenosphere, but not the lithosphere?

Accepted Answer

A)  zone in the upper mantle that deforms by plastic flowage 
B)  cool, rigid layer of crust and upper mantle that forms the tectonic plates 
C)  deforms mainly by brittle fracturing and faulting 
D)  partial melting of rising granitic plumes produces huge volumes of basaltic magma 
A)  zone in the upper mantle that deforms by plastic flowage 
B)  cool, rigid layer of crust and upper mantle that forms the tectonic plates 
C)  deforms mainly by brittle fracturing and faulting 
D)  partial melting of rising granitic plumes produces huge volumes of basaltic magma

Question 8

During various times in the geologic past, the polarity of Earth's magnetic field has been reversed.

Accepted Answer

A) True 
 B)False

Question 9

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Accepted Answer

A)  Curie point 
B)  paleomagnetism 
C)  magnetic poles 
D)  polar wandering 
A)  Curie point 
B)  paleomagnetism 
C)  magnetic poles 
D)  polar wandering

Question 10

Which one of the following is an important fundamental assumption underlying the plate tectonic theory?

Accepted Answer

A)  Earth's magnetic field originates in the outer core. 
B)  Earth's diameter has been essentially constant over time. 
C)  Radioactive decay slows down at the extreme pressures of the inner core. 
D)  Earth's ocean basins are very old and stable features. 
A)  Earth's magnetic field originates in the outer core. 
B)  Earth's diameter has been essentially constant over time. 
C)  Radioactive decay slows down at the extreme pressures of the inner core. 
D)  Earth's ocean basins are very old and stable features.

Question 11

________ first related the symmetrical magnetic patterns in seafloor basalts to seafloor spreading at a mid-ocean ridge.

Accepted Answer

A)  Evans and Novak 
B)  Vine and Matthews 
C)  Matthews and Marks 
D)  Wegener and Wilson 
A)  Evans and Novak 
B)  Vine and Matthews 
C)  Matthews and Marks 
D)  Wegener and Wilson

Question 12

A(n) ________ is a long-lived, stationary magma source deep in the mantle, well below the base of the lithosphere.

Accepted Answer

The answer of A(n) ________ is a long-lived, stationary magma...

Question 13

Which of the following paleoclimatic evidence supports the idea of the late Paleozoic supercontinent in the Southern Hemisphere?

Accepted Answer

A)  lithified loess (wind-blown) deposits in the deserts of Chile, Australia, and Africa 
B)  tillites (rocks formed by glaciers) in South Africa and South America 
C)  thick sediments in the Amazon and Congo deltas of South America and Africa 
D)  cold water fossils in the deep-water sediments of the South Atlantic abyssal plain 
A)  lithified loess (wind-blown) deposits in the deserts of Chile, Australia, and Africa 
B)  tillites (rocks formed by glaciers) in South Africa and South America 
C)  thick sediments in the Amazon and Congo deltas of South America and Africa 
D)  cold water fossils in the deep-water sediments of the South Atlantic abyssal plain

Question 14

The modern-day Red Sea is explained by plate tectonics theory because it is ________.

Accepted Answer

A)  a tiny remnant of a once immense ocean that was closed as Africa moved toward Asia 
B)  the site of a transform fault along which Arabia is moving away from Africa 
C)  a rift zone that may eventually open into a major ocean if Arabia and Africa continue to separate 
D)  a rare example of a two-continent subduction zone where the African continental plate is sinking under the Arabian continental plate 
A)  a tiny remnant of a once immense ocean that was closed as Africa moved toward Asia 
B)  the site of a transform fault along which Arabia is moving away from Africa 
C)  a rift zone that may eventually open into a major ocean if Arabia and Africa continue to separate 
D)  a rare example of a two-continent subduction zone where the African continental plate is sinking under the Arabian continental plate

Question 15

Matching. Match the plate boundary with the appropriate phrase.
-plates are sliding past one another horizontally

Accepted Answer

A) convergent 
B) transform 
C) divergent 
A) convergent 
B) transform 
C) divergent

Question 16

Matching. Match the plate boundary with the appropriate phrase.
-the San Andreas fault

Accepted Answer

A) convergent 
B) transform 
C) divergent 
A) convergent 
B) transform 
C) divergent

Question 17

An extensive, late Paleozoic glaciation affected southern India, southern Africa and southeastern South America.

Accepted Answer

A) True 
 B)False

Question 18

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Accepted Answer

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

Question 19

Where would you drill to recover samples of the oldest basalts of the oceanic crust, which are Jurassic in age?

Accepted Answer

A)  crest of the East Pacific, mid-ocean ridge 
B)  oceanic side of the Aleutian trench 
C)  just offshore from the Hawaiian Islands 
D)  Mid-Atlantic Ridge under Iceland 
A)  crest of the East Pacific, mid-ocean ridge 
B)  oceanic side of the Aleutian trench 
C)  just offshore from the Hawaiian Islands 
D)  Mid-Atlantic Ridge under Iceland

Question 20

The temperature below which magnetic material can retain a permanent magnetization is called the ________.

Accepted Answer

A)  Darcy temperature 
B)  Vine temperature 
C)  Bullard point 
D)  Curie point 
A)  Darcy temperature 
B)  Vine temperature 
C)  Bullard point 
D)  Curie point

Exam 7: Plate Tectonics: a Scientific Theory Unfolds

The ________ is (are) a logical evolutionary analog of the African Rift Valleys ten million years from now.

Matching. Match the plate boundary with the appropriate phrase. -the west coast of South America

The Aleutian Islands occur at a ________.

Deep ocean trenches are surficial evidence for ________.

Pull-apart rift zones are generally associated with a ________ plate boundary.

Matching. Match the plate boundary with the appropriate phrase. -characterized by arcs of stratovolcanoes and deep-ocean trenches

Which of the following statements apply to the asthenosphere, but not the lithosphere?

During various times in the geologic past, the polarity of Earth's magnetic field has been reversed.

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Which one of the following is an important fundamental assumption underlying the plate tectonic theory?

________ first related the symmetrical magnetic patterns in seafloor basalts to seafloor spreading at a mid-ocean ridge.

A(n) ________ is a long-lived, stationary magma source deep in the mantle, well below the base of the lithosphere.

Which of the following paleoclimatic evidence supports the idea of the late Paleozoic supercontinent in the Southern Hemisphere?

The modern-day Red Sea is explained by plate tectonics theory because it is ________.

Matching. Match the plate boundary with the appropriate phrase. -plates are sliding past one another horizontally

Matching. Match the plate boundary with the appropriate phrase. -the San Andreas fault

An extensive, late Paleozoic glaciation affected southern India, southern Africa and southeastern South America.

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Where would you drill to recover samples of the oldest basalts of the oceanic crust, which are Jurassic in age?

The temperature below which magnetic material can retain a permanent magnetization is called the ________.

Introduction to Earth Science

Minerals: Building Blocks of Rocks

Rocks: Materials of the Solid Earth

Weathering, Soil, and Mass Wasting

Running Water and Groundwater

Glaciers, Deserts, and Winds

Earthquakes and Earths Interior

Volcanoes and Other Igneous Activity

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 Weather

Climate

Origin of Modern Astronomy

Touring Our Solar System

Light, Astronomical Observations, and the Sun

Beyond Our Solar System

Filters