Question 1

During the geologic past, the magnetic field poles have generally been very close to Earth's rotational poles.

Accepted Answer

A) True 
 B)False  True

Question 2

The ________ today marks the location of the rift along which Africa separated from South America.

Accepted Answer

Mid-Atlantic Ridge

Question 3

Match the letter of each illustration below to the correct type of plate boundary.
A) transform B) divergent C) convergent   (a) __________   (b) __________   (c) __________

Accepted Answer

(a) = B (b) = C (c) = A

Question 4

What is the name of the volcanic mountain chain shown in the diagram below?

Accepted Answer

continenta

Question 5

Matching. Match the plate boundary with the appropriate phrase.
-the Mid-Atlantic Ridge

Accepted Answer

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

Question 6

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)  slab pull 
B)  mantle drag 
C)  ridge push 
D)  slab suction 
A)  slab pull 
B)  mantle drag 
C)  ridge push 
D)  slab suction

Question 7

As the South Atlantic basin widens by seafloor spreading, Africa and South America are moving closer together.

Accepted Answer

A) True 
 B)False

Question 8

Hawaii is the oldest island of the Hawaiian Island chain.

Accepted Answer

A) True 
 B)False

Question 9

Which one of the following most accurately describes the volcanoes of the Hawaiian Islands?

Accepted Answer

A)  stratovolcanoes associated with subduction and a convergent plate boundary 
B)  shield volcanoes fed by a long-lived hot spot below the Pacific lithospheric plate 
C)  shield volcanoes associated with a mid-Pacific ridge and spreading center 
D)  stratovolcanoes associated with a mid-Pacific transform fault 
A)  stratovolcanoes associated with subduction and a convergent plate boundary 
B)  shield volcanoes fed by a long-lived hot spot below the Pacific lithospheric plate 
C)  shield volcanoes associated with a mid-Pacific ridge and spreading center 
D)  stratovolcanoes associated with a mid-Pacific transform fault

Question 10

The oldest rocks of the oceanic crust are found in deep ocean trenches far away from active, mid-ocean ridges.

Accepted Answer

A) True 
 B)False

Question 11

Linear, magnetic patterns associated with mid-ocean ridges are configured as ________.

Accepted Answer

A)  concentric circles about a rising plume of hot mantle rocks and magma 
B)  reversed magnetizations along the rift valleys and normal magnetizations along the ridge 
C)  normal and reversed magnetized strips roughly parallel to the ridge 
D)  normal and reversed magnetized strips roughly perpendicular to the ridge axis 
A)  concentric circles about a rising plume of hot mantle rocks and magma 
B)  reversed magnetizations along the rift valleys and normal magnetizations along the ridge 
C)  normal and reversed magnetized strips roughly parallel to the ridge 
D)  normal and reversed magnetized strips roughly perpendicular to the ridge axis

Question 12

The former late Paleozoic super continent is known as ________.

Accepted Answer

A)  Pandomonia 
B)  Pancakea 
C)  Pangaea 
D)  Panatopia 
A)  Pandomonia 
B)  Pancakea 
C)  Pangaea 
D)  Panatopia

Question 13

Describe exactly what type of plate boundary is illustrated below and explain your answer.

Accepted Answer

This is an example of a continental to c

Question 14

Although Alfred Wegener presented compelling evidence for his continental drift hypothesis (despite lacking a mechanism), why was the true nature of plate boundaries not determined until the 1960s? (Hint: Don't think of historical scientific developments, but rather the scope and rate of geological processes involved in plate tectonics.)

Accepted Answer

The true nature of plate boundaries was

Question 15

Matching. Match the plate boundary with the appropriate phrase.
-where subduction zones occur

Accepted Answer

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

Question 16

Japan and the Aleutian Islands have formed from a(n) ________ to ________ convergent boundary.

Accepted Answer

The answer of Japan and the Aleutian Islands have formed...

Question 17

The continental drift hypothesis was rejected primarily because Alfred Wegener could not ________.

Accepted Answer

A)  find geologic similarities on different continents 
B)  disprove competing theories that were more accepted by scientists 
C)  identify a mechanism capable of moving continents 
D)  all of the above 
A)  find geologic similarities on different continents 
B)  disprove competing theories that were more accepted by scientists 
C)  identify a mechanism capable of moving continents 
D)  all of the above

Question 18

During the first two decades of the twentieth century, ________ was a vigorous proponent of continental drift.

Accepted Answer

The answer of During the first two decades of the...

Question 19

Matching. Match the plate boundary with the appropriate phrase.
-this boundary is normally devoid of volcanism

Accepted Answer

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

Question 20

Wegener's continental drift hypothesis was weakened because a viable mechanism for moving the continents was lacking.

Accepted Answer

A) True 
 B)False

Exam 7: Plate Tectonics: a Scientific Theory Unfolds

During the geologic past, the magnetic field poles have generally been very close to Earth's rotational poles.

The ________ today marks the location of the rift along which Africa separated from South America.

Match the letter of each illustration below to the correct type of plate boundary. A) transform B) divergent C) convergent (a) __________ (b) __________ (c) __________

What is the name of the volcanic mountain chain shown in the diagram below?

Matching. Match the plate boundary with the appropriate phrase. -the Mid-Atlantic Ridge

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.

As the South Atlantic basin widens by seafloor spreading, Africa and South America are moving closer together.

Hawaii is the oldest island of the Hawaiian Island chain.

Which one of the following most accurately describes the volcanoes of the Hawaiian Islands?

The oldest rocks of the oceanic crust are found in deep ocean trenches far away from active, mid-ocean ridges.

Linear, magnetic patterns associated with mid-ocean ridges are configured as ________.

The former late Paleozoic super continent is known as ________.

Describe exactly what type of plate boundary is illustrated below and explain your answer.

Matching. Match the plate boundary with the appropriate phrase. -where subduction zones occur

Japan and the Aleutian Islands have formed from a(n) ________ to ________ convergent boundary.

The continental drift hypothesis was rejected primarily because Alfred Wegener could not ________.

During the first two decades of the twentieth century, ________ was a vigorous proponent of continental drift.

Matching. Match the plate boundary with the appropriate phrase. -this boundary is normally devoid of volcanism

Wegener's continental drift hypothesis was weakened because a viable mechanism for moving the continents was lacking.

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

Match the letter of each illustration below to the correct type of plate boundary. A) transform B) divergent C) convergent (a) (b) (c) __

Japan and the Aleutian Islands have formed from a(n) to convergent boundary.