Question 1

Which force may cause uplift, folding, and formation of reverse and thrust faults?

Accepted Answer

A)  slab pull 
B)  gravity 
C)  compression 
D)  tension 
A)  slab pull 
B)  gravity 
C)  compression 
D)  tension C

Question 2

How can we use sedimentary rocks to substantiate the moving of the continents through time?

Accepted Answer

Sedimentary rocks contain a record of their environment of deposition. Therefore, if you find coal in northern Canada, you can surmise that this coal was created when northern Canada was located closer towards the equator.

Question 3

Why is there a difference in the number of faults involved at transform boundaries in the ocean and those on continents?

Accepted Answer

A)  Continental crust is weaker than oceanic crust. 
B)  The oceanic crust has a more crystalline rock composition. 
C)  The weight of the water equalizes the pressure on the oceanic crust. 
D)  Plates have more room to move in the ocean than on continents. 
A)  Continental crust is weaker than oceanic crust. 
B)  The oceanic crust has a more crystalline rock composition. 
C)  The weight of the water equalizes the pressure on the oceanic crust. 
D)  Plates have more room to move in the ocean than on continents. A

Question 4

Figure 12.11  
-Refer to Figure 12.11 in your textbook. Which option correctly matches isotopic age and polarity of the seafloor.

Accepted Answer

A)  2.29 million years: reverse polarity; 1.37 million years: reverse polarity 
B)  3.42 million years: reverse polarity; 1.74 million years: reverse polarity 
C)  1.26 million years: normal polarity; 1.92 million years: reverse polarity 
D)  2.12 million years: normal polarity; 3.01 million years: normal polarity 
A)  2.29 million years: reverse polarity; 1.37 million years: reverse polarity 
B)  3.42 million years: reverse polarity; 1.74 million years: reverse polarity 
C)  1.26 million years: normal polarity; 1.92 million years: reverse polarity 
D)  2.12 million years: normal polarity; 3.01 million years: normal polarity

Question 5

What is the evidence that plates move apart at divergent plate boundaries?

Accepted Answer

Plates move apart at divergent plate bou

Question 6

A present day example of a continental-oceanic convergent plate boundary is

Accepted Answer

A)  Andes Mountains. 
B)  Himalayas and Tibetan Plateau. 
C)  Indonesia. 
D)  New Zealand. 
A)  Andes Mountains. 
B)  Himalayas and Tibetan Plateau. 
C)  Indonesia. 
D)  New Zealand.

Question 7

Which part of the Atlantic Ocean is the youngest?

Accepted Answer

the material in the

Question 8

What is the evidence that plates are rigid?

Accepted Answer

Plate tectonics theory states that litho

Question 9

Which of the following determines why subducting plates sink at a particular location?

Accepted Answer

A)  the heat of the asthenosphere at the location 
B)  the density of the asthenosphere at the location 
C)  the pushing movement of the adjacent plate 
D)  the density of the lithosphere at the location 
A)  the heat of the asthenosphere at the location 
B)  the density of the asthenosphere at the location 
C)  the pushing movement of the adjacent plate 
D)  the density of the lithosphere at the location

Question 10

A present day example of an oceanic-oceanic convergent plate boundary is

Accepted Answer

A)  Indonesia. 
B)  Andes Mountains. 
C)  Appalachian Mountains. 
D)  Hawaii. 
A)  Indonesia. 
B)  Andes Mountains. 
C)  Appalachian Mountains. 
D)  Hawaii.

Question 11

300 million years ago Ancestral North America was

Accepted Answer

A)  in its present day location. 
B)  part of Pangea. 
C)  at 60 degrees north latitude. 
D)  at the south pole. 
A)  in its present day location. 
B)  part of Pangea. 
C)  at 60 degrees north latitude. 
D)  at the south pole.

Question 12

When did Pangea begin to split apart?

Accepted Answer

A)  60 million years ago 
B)  180 million years ago 
C)  240 million years ago 
D)  360 million years ago 
A)  60 million years ago 
B)  180 million years ago 
C)  240 million years ago 
D)  360 million years ago

Question 13

Which process is most common at transform boundaries?

Accepted Answer

A)  volcanic action 
B)  lithospheric formation 
C)  lithospheric destruction 
D)  lithospheric conservation 
A)  volcanic action 
B)  lithospheric formation 
C)  lithospheric destruction 
D)  lithospheric conservation

Question 14

What is a seamount?

Accepted Answer

A)  an extinct underwater volcano 
B)  a wrinkle of crust formed by converging plates 
C)  an underwater sedimentary rock pile 
D)  an underwater volcano 
A)  an extinct underwater volcano 
B)  a wrinkle of crust formed by converging plates 
C)  an underwater sedimentary rock pile 
D)  an underwater volcano

Question 15

When were Africa and South America joined together?

Accepted Answer

Africa and South Ame

Question 16

Which type of convergent plate boundary results in a chain of submarine volcanoes?

Accepted Answer

A)  oceanic-oceanic 
B)  continental-continental 
C)  continental-oceanic 
D)  ridge-hot spot 
A)  oceanic-oceanic 
B)  continental-continental 
C)  continental-oceanic 
D)  ridge-hot spot

Question 17

When did the Himalayan Mountains form?

Accepted Answer

A)  Cenozoic Era 
B)  Paleozoic Era 
C)  Mesozoic Era 
D)  Devonian Period 
A)  Cenozoic Era 
B)  Paleozoic Era 
C)  Mesozoic Era 
D)  Devonian Period

Question 18

According to the Continental Drift hypothesis the continents and ocean basins on the same plate move together.

Accepted Answer

A) True 
 B)False

Question 19

Which part of the plate theory from the 1960s was disproved by GPS technology?

Accepted Answer

A)  plate velocity 
B)  relative plate motion 
C)  nature of the plates 
D)  tectonic action 
A)  plate velocity 
B)  relative plate motion 
C)  nature of the plates 
D)  tectonic action

Question 20

What is the general direction of the movement of California compared to the center of the continent?

Accepted Answer

A)  southeast 
B)  northeast 
C)  west 
D)  northwest 
A)  southeast 
B)  northeast 
C)  west 
D)  northwest

Exam 12: Global Tectonics: Plates and Plumes

Which force may cause uplift, folding, and formation of reverse and thrust faults?

How can we use sedimentary rocks to substantiate the moving of the continents through time?

Why is there a difference in the number of faults involved at transform boundaries in the ocean and those on continents?

Figure 12.11 -Refer to Figure 12.11 in your textbook. Which option correctly matches isotopic age and polarity of the seafloor.

What is the evidence that plates move apart at divergent plate boundaries?

A present day example of a continental-oceanic convergent plate boundary is

Which part of the Atlantic Ocean is the youngest?

What is the evidence that plates are rigid?

Which of the following determines why subducting plates sink at a particular location?

A present day example of an oceanic-oceanic convergent plate boundary is

300 million years ago Ancestral North America was

When did Pangea begin to split apart?

Which process is most common at transform boundaries?

What is a seamount?

When were Africa and South America joined together?

Which type of convergent plate boundary results in a chain of submarine volcanoes?

When did the Himalayan Mountains form?

According to the Continental Drift hypothesis the continents and ocean basins on the same plate move together.

Which part of the plate theory from the 1960s was disproved by GPS technology?

What is the general direction of the movement of California compared to the center of the continent?

Why Study Earth

Minerals: Building Blocks of the Planet

Rocks and Rock-Forming Processes

Formation of Magma and Igneous Rocks

Formation of Sediment and Sedimentary Rocks

Formation of Metamorphic Rocks

Earth Materials As Time Keepers

Earth Materials As Time Keepers

Making Earth

Motion Inside Earth

Deformation of Rocks

Tectonics and Surface Relief

Soil Formation and Landscape Stability

Mass Movements: Landscapes in Motion

Streams: Flowing Water Shapes the Landscape

Water Flowing Underground

Glaciers: Cold-Climate Sculptors of Continents

Shorelines: Changing Landscapes Where Land Meets Sea

Wind: a Global Geologic Process

Global Warming: Real Time Change in the Earth System

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