Question 1

What simple observation inspired Alfred Wegener's hypothesis of continental drift?

Accepted Answer

The jig-saw puzzle fit of Sout

Question 2

Magnetic surveys of the ocean floors reveal

Accepted Answer

A) alternating stripes of normal and reversed polarity paralleling the mid-Atlantic ridge. 
B) thin oceanic crust composed of basaltic rocks. 
C) that reversed polarity is rare. 
D) all of the above. 
A) alternating stripes of normal and reversed polarity paralleling the mid-Atlantic ridge. 
B) thin oceanic crust composed of basaltic rocks. 
C) that reversed polarity is rare. 
D) all of the above.

Question 3

The occurrence of earthquakes in the absence of seafloor spreading,oceanic trenches,or volcanic activity is a characteristic feature of

Accepted Answer

A) convergent boundaries between plates. 
B) divergent boundaries between plates. 
C) subduction zones. 
D) transform fault boundaries between plates. 
A) convergent boundaries between plates. 
B) divergent boundaries between plates. 
C) subduction zones. 
D) transform fault boundaries between plates.

Question 4

The theory of continental drift is supported by paleoclimate data,paleontology,and

Accepted Answer

A) paleomagnetic data. 
B) seafloor spreading. 
C) transform boundaries. 
D) the jig-saw fit of the continents at their continental margins. 
A) paleomagnetic data. 
B) seafloor spreading. 
C) transform boundaries. 
D) the jig-saw fit of the continents at their continental margins.

Question 5

Damage from an earthquake is most severe when the

Accepted Answer

A) epicenter is close to the surface. 
B) surface material is composed of unconsolidated sediments. 
C) buildings and structures are poorly constructed. 
D) all of the above 
A) epicenter is close to the surface. 
B) surface material is composed of unconsolidated sediments. 
C) buildings and structures are poorly constructed. 
D) all of the above

Question 6

P-waves travel faster through the inner core than the outer core because the inner core is

Accepted Answer

A) hotter than the outer core. 
B) the same as the outer core. 
C) rock. 
D) solid. 
A) hotter than the outer core. 
B) the same as the outer core. 
C) rock. 
D) solid.

Question 7

The concept of seafloor spreading states that

Accepted Answer

A) Earth is expanding. 
B) seafloor is created at mid-ocean ridges and destroyed at deep ocean trenches. 
C) sea level is rising. 
D) earthquakes occur underwater. 
A) Earth is expanding. 
B) seafloor is created at mid-ocean ridges and destroyed at deep ocean trenches. 
C) sea level is rising. 
D) earthquakes occur underwater.

Question 8

What evidence was used to support magnetic pole reversals?

Accepted Answer

A) apparent polar wandering and alternating magnetic stripe patterns on the ocean floor 
B) paleomagnetism 
C) normal and reverse polarity 
D) continental drift and seafloor spreading 
A) apparent polar wandering and alternating magnetic stripe patterns on the ocean floor 
B) paleomagnetism 
C) normal and reverse polarity 
D) continental drift and seafloor spreading

Question 9

The energy in an earthquake is released

Accepted Answer

A) all at once. 
B) before the quake,after the quake,and during the quake. 
C) as an epicenter focus. 
D) in unconsolidated rock. 
A) all at once. 
B) before the quake,after the quake,and during the quake. 
C) as an epicenter focus. 
D) in unconsolidated rock.

Question 10

What are glacial striations,and how did Wegener use them to support his hypothesis of continental drift?

Accepted Answer

Glacial striations are gouges or grooves

Question 11

Earth's internal layers were discovered by studying the propagation of P- and S- waves through Earth's interior.In comparison to P-waves,the movement of S-waves are

Accepted Answer

A) faster and compresses and expands the rock as they move through it. 
B) faster and vibrates rock particles up and down and side-to-side. 
C) slower and can travel through solid granite,magma,water or air. 
D) slower and they can only travel through solids,not liquids. 
A) faster and compresses and expands the rock as they move through it. 
B) faster and vibrates rock particles up and down and side-to-side. 
C) slower and can travel through solid granite,magma,water or air. 
D) slower and they can only travel through solids,not liquids.

Question 12

In comparison to S-waves,P-waves

Accepted Answer

A) vibrate the particles of their medium up and down and side-to-side. 
B) can travel through solid granite,magma,water and/or air. 
C) can travel only through solids,not through fluids. 
D) are the second seismic wave to register on a seismograph. 
A) vibrate the particles of their medium up and down and side-to-side. 
B) can travel through solid granite,magma,water and/or air. 
C) can travel only through solids,not through fluids. 
D) are the second seismic wave to register on a seismograph.

Question 13

According to the theory of seafloor spreading,molten rock is rising up along

Accepted Answer

A) the mid-ocean ridges. 
B) trenches that border continental margins. 
C) islands surrounding the Pacific volcanic rim. 
D) areas of sinking seafloor. 
A) the mid-ocean ridges. 
B) trenches that border continental margins. 
C) islands surrounding the Pacific volcanic rim. 
D) areas of sinking seafloor.

Question 14

Compared with oceanic crust,continental crust is very buoyant because it is

Accepted Answer

A) composed of basaltic rock that contains air bubbles from successive lava flows. 
B) composed of granitic rocks whereas oceanic crust is composed of basaltic rocks. 
C) thinner and forms a thin upper skin on the oceanic crust below. 
D) very young and fresh. 
A) composed of basaltic rock that contains air bubbles from successive lava flows. 
B) composed of granitic rocks whereas oceanic crust is composed of basaltic rocks. 
C) thinner and forms a thin upper skin on the oceanic crust below. 
D) very young and fresh.

Question 15

The San Andreas fault

Accepted Answer

A) stretches from the Gulf of California to Cape Mendocino,California,and separates the Pacific Plate from the North American Plate. 
B) accommodates all the motion between the Pacific Plate and the North American Plate. 
C) is presently inactive. 
D) all of the above 
A) stretches from the Gulf of California to Cape Mendocino,California,and separates the Pacific Plate from the North American Plate. 
B) accommodates all the motion between the Pacific Plate and the North American Plate. 
C) is presently inactive. 
D) all of the above

Question 16

In comparison to P-waves,S-waves

Accepted Answer

A) compress and expand the rock as they move through it. 
B) can travel through all mediums-solid granite,magma,water and/or air. 
C) can travel only through solids-not in fluids. 
D) are fast and the first to register on a seismograph. 
A) compress and expand the rock as they move through it. 
B) can travel through all mediums-solid granite,magma,water and/or air. 
C) can travel only through solids-not in fluids. 
D) are fast and the first to register on a seismograph.

Question 17

What geologic features are explained by plate tectonics?

Accepted Answer

Mountain ranges,volcanoes,plut

Question 18

Compression cannot produce

Accepted Answer

A) anticlines. 
B) synclines. 
C) normal faults. 
D) reverse faults. 
A) anticlines. 
B) synclines. 
C) normal faults. 
D) reverse faults.

Question 19

Plate tectonics differs from continental drift because it

Accepted Answer

A) provides a credible driving force. 
B) did not explain the fit between South America and Africa. 
C) showed that ancient ice sheets did not exist. 
D) showed that Pangaea broke up much later than predicted. 
A) provides a credible driving force. 
B) did not explain the fit between South America and Africa. 
C) showed that ancient ice sheets did not exist. 
D) showed that Pangaea broke up much later than predicted.

Question 20

The dominant force at convergent boundaries is

Accepted Answer

A) compression. 
B) tension. 
C) shearing. 
D) similar to that in normal faulting. 
A) compression. 
B) tension. 
C) shearing. 
D) similar to that in normal faulting.

Exam 21: Plate Tectonics and Earths Interior

What simple observation inspired Alfred Wegener's hypothesis of continental drift?

Magnetic surveys of the ocean floors reveal

The occurrence of earthquakes in the absence of seafloor spreading,oceanic trenches,or volcanic activity is a characteristic feature of

The theory of continental drift is supported by paleoclimate data,paleontology,and

Damage from an earthquake is most severe when the

P-waves travel faster through the inner core than the outer core because the inner core is

The concept of seafloor spreading states that

What evidence was used to support magnetic pole reversals?

The energy in an earthquake is released

What are glacial striations,and how did Wegener use them to support his hypothesis of continental drift?

Earth's internal layers were discovered by studying the propagation of P- and S- waves through Earth's interior.In comparison to P-waves,the movement of S-waves are

In comparison to S-waves,P-waves

According to the theory of seafloor spreading,molten rock is rising up along

Compared with oceanic crust,continental crust is very buoyant because it is

The San Andreas fault

In comparison to P-waves,S-waves

What geologic features are explained by plate tectonics?

Compression cannot produce

Plate tectonics differs from continental drift because it

The dominant force at convergent boundaries is

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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