Question 1

As compared to the density of the asthenosphere,the oceanic lithosphere is ____________.

Accepted Answer

A) always more dense 
B) always less dense 
C) initially more dense at the age of formation,but eventually becomes less dense 
D) initially less dense at the age of formation,but eventually becomes more dense 
A) always more dense 
B) always less dense 
C) initially more dense at the age of formation,but eventually becomes less dense 
D) initially less dense at the age of formation,but eventually becomes more dense

Question 2

In a hot-spot volcanic island chain,such as the Hawaiian Islands,all islands possess active volcanoes simultaneously and therefore the risks of volcanic hazards are about the same for all islands.

Accepted Answer

A) True 
 B)False

Question 3

Consult the figure below.Hawaii is an example of ____________.

Accepted Answer

A) hot-spot volcanism 
B) mid-ocean ridge volcanism 
C) volcanic island arc 
D) transform margin 
A) hot-spot volcanism 
B) mid-ocean ridge volcanism 
C) volcanic island arc 
D) transform margin

Question 4

The theory of plate tectonics ____________.

Accepted Answer

A) incorporates continental drift but not sea-floor spreading 
B) incorporates sea-floor spreading but not continental drift 
C) incorporates and explains both sea-floor spreading and continental drift 
D) does not incorporate sea-floor spreading or continental drift 
A) incorporates continental drift but not sea-floor spreading 
B) incorporates sea-floor spreading but not continental drift 
C) incorporates and explains both sea-floor spreading and continental drift 
D) does not incorporate sea-floor spreading or continental drift

Question 5

The average thickness of continental lithosphere is about ____________.

Accepted Answer

A) 30 km 
B) 60 km 
C) 150 km 
D) 10,000 km 
A) 30 km 
B) 60 km 
C) 150 km 
D) 10,000 km

Question 6

Consult the figure below.Subduction zones are ____________.

Accepted Answer

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

Question 7

Sliding motion along transform faults caused the segments of the mid-ocean ridges to become dislocated with respect to one another.

Accepted Answer

A) True 
 B)False

Question 8

Virtually all of the sediment atop a downgoing plate becomes subducted into the mantle along with the plate.

Accepted Answer

A) True 
 B)False

Question 9

The lithosphere of Earth can be bent and broken,but will not flow because it ____________.

Accepted Answer

A) is too old 
B) is too dense 
C) is too cool 
D) contains radioactive elements 
A) is too old 
B) is too dense 
C) is too cool 
D) contains radioactive elements

Question 10

The volcanoes of the Cascades Mountains are related to melting of rock associated with a ____________ plate boundary.

Accepted Answer

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

Question 11

______________ is an example of a continental rift and the ______________ is/are the result of collision.

Accepted Answer

A) The Basin and Range Province;mid-ocean ridge 
B) A mid-ocean ridge;Himalayan Mountains 
C) The Basin and Range Province;Himalayan Mountains 
D) The San Andreas Fault;Himalayan Mountains 
A) The Basin and Range Province;mid-ocean ridge 
B) A mid-ocean ridge;Himalayan Mountains 
C) The Basin and Range Province;Himalayan Mountains 
D) The San Andreas Fault;Himalayan Mountains

Question 12

Consult the figure below.Most of the pushing force driving plate motion is produced ____________.

Accepted Answer

A) at mid-ocean ridges 
B) at subduction zones 
C) at collision zones 
D) in the interiors of continental plates 
A) at mid-ocean ridges 
B) at subduction zones 
C) at collision zones 
D) in the interiors of continental plates

Question 13

Tectonic plates might consist of ____________.

Accepted Answer

A) continental lithosphere only 
B) oceanic lithosphere only 
C) oceanic or continental lithosphere or a combination of both 
D) either oceanic or continental lithosphere,but not both 
A) continental lithosphere only 
B) oceanic lithosphere only 
C) oceanic or continental lithosphere or a combination of both 
D) either oceanic or continental lithosphere,but not both

Question 14

Earthquakes are most frequent near coastlines that are termed ____________.

Accepted Answer

A) active margins 
B) passive margins 
C) aseismic margins 
D) geodesic margins 
A) active margins 
B) passive margins 
C) aseismic margins 
D) geodesic margins

Question 15

At a divergent plate boundary (shown below),two opposed plates ____________.

Accepted Answer

A) move toward one another 
B) move away from one another 
C) slide past one another 
A) move toward one another 
B) move away from one another 
C) slide past one another

Question 16

Continental coastlines that occur within the interior of a tectonic plate are called ____________.

Accepted Answer

A) internal margins 
B) passive margins 
C) active margins 
D) inert margins 
A) internal margins 
B) passive margins 
C) active margins 
D) inert margins

Question 17

According to Archimedes' principle of buoyancy,an iceberg sinks until _____________.

Accepted Answer

A) the total mass of the water displaced equals the total mass of the whole iceberg 
B) the total mass of the iceberg is underwater 
C) about 60% of the iceberg is underwater 
D) the total mass of the water displaced equals 80% of the mass of the iceberg 
A) the total mass of the water displaced equals the total mass of the whole iceberg 
B) the total mass of the iceberg is underwater 
C) about 60% of the iceberg is underwater 
D) the total mass of the water displaced equals 80% of the mass of the iceberg

Question 18

Deep oceanic trenches are features of ____________ plate boundaries.

Accepted Answer

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

Question 19

All lithospheric plates are approximately the same size and contain a combination of oceanic and continental crust.

Accepted Answer

A) True 
 B)False

Question 20

Consult the figure below.The Wadati-Benioff zone is a belt of earthquakes found ____________.

Accepted Answer

A) within an otherwise stable continental interior 
B) within an overriding plate at a subduction zone 
C) within a downgoing plate at a subduction zone 
D) along mid-ocean ridges 
A) within an otherwise stable continental interior 
B) within an overriding plate at a subduction zone 
C) within a downgoing plate at a subduction zone 
D) along mid-ocean ridges

Exam 4: The Way the Earth Works: Plate Tectonics

As compared to the density of the asthenosphere,the oceanic lithosphere is ____________.

In a hot-spot volcanic island chain,such as the Hawaiian Islands,all islands possess active volcanoes simultaneously and therefore the risks of volcanic hazards are about the same for all islands.

Consult the figure below.Hawaii is an example of ____________.

The theory of plate tectonics ____________.

The average thickness of continental lithosphere is about ____________.

Consult the figure below.Subduction zones are ____________.

Sliding motion along transform faults caused the segments of the mid-ocean ridges to become dislocated with respect to one another.

Virtually all of the sediment atop a downgoing plate becomes subducted into the mantle along with the plate.

The lithosphere of Earth can be bent and broken,but will not flow because it ____________.

The volcanoes of the Cascades Mountains are related to melting of rock associated with a ____________ plate boundary.

______________ is an example of a continental rift and the ______________ is/are the result of collision.

Consult the figure below.Most of the pushing force driving plate motion is produced ____________.

Tectonic plates might consist of ____________.

Earthquakes are most frequent near coastlines that are termed ____________.

At a divergent plate boundary (shown below),two opposed plates ____________.

Continental coastlines that occur within the interior of a tectonic plate are called ____________.

According to Archimedes' principle of buoyancy,an iceberg sinks until _____________.

Deep oceanic trenches are features of ____________ plate boundaries.

All lithospheric plates are approximately the same size and contain a combination of oceanic and continental crust.

Consult the figure below.The Wadati-Benioff zone is a belt of earthquakes found ____________.

Cosmology and the Birth of Earth

Journey to the Center of the Earth

Drifting Continents and Spreading Seas

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rock

Pages of Earths Past: Sedimentary Rocks

Metamorphism: A Process of Change

The Wrath of Vulcan: Volcanic Eruptions

A Violent Pulse: Earthquakes

Cracks, crags, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Squeezing Power From a Stone: Energy Resources

Riches in Rock: Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: The Geology of Running Water

Restless Realm: Oceans and Coasts

A Hidden Reserve: Groundwater

An Envelope of Gas: Earths Atmosphere and Climate

Dry Settings: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

Filters

is an example of a continental rift and the is/are the result of collision.