Question 1

Two sets of mountain ranges,which are continuous once the continents on either side of the Atlantic are joined,are located where?

Accepted Answer

A)  eastern North America and Greenland/ Australia and East Africa 
B)  east Africa and Europe/ eastern North America and the Soviet Union 
C)  Australia and Southeast Asia/ Arabia and the Persian Gulf 
D)  South Africa and Brazil/ eastern North America and Great Britain 
E)  Central and South America/ Central and North America 
A)  eastern North America and Greenland/ Australia and East Africa 
B)  east Africa and Europe/ eastern North America and the Soviet Union 
C)  Australia and Southeast Asia/ Arabia and the Persian Gulf 
D)  South Africa and Brazil/ eastern North America and Great Britain 
E)  Central and South America/ Central and North America

Question 2

The cause of magnetic reversals is a change in the structure of the Earth's inner core.

Accepted Answer

A) True 
 B)False

Question 3

What was the principal reason why Wegener's theory of continental drift was rejected?

Accepted Answer

Wegener lacked a plausible mec

Question 4

What did the differing paleomagnetic records for each continent show?

Accepted Answer

A)  each continent had its own magnetic pole during successive geological periods 
B)  that the magnetic poles for each continent had moved over geological time 
C)  that the magnetic poles have remained in one location and each of the continents has moved 
D)  that both the poles and the continents have moved over time 
E)  none of these 
A)  each continent had its own magnetic pole during successive geological periods 
B)  that the magnetic poles for each continent had moved over geological time 
C)  that the magnetic poles have remained in one location and each of the continents has moved 
D)  that both the poles and the continents have moved over time 
E)  none of these

Question 5

The transition zone from the exposed land to the ocean floor is called the

Accepted Answer

A)  oceanic trench. 
B)  continental margin. 
C)  continental slope. 
D)  abyssal plain. 
A)  oceanic trench. 
B)  continental margin. 
C)  continental slope. 
D)  abyssal plain.

Question 6

The San Andreas Fault that runs through California ____.

Accepted Answer

A)  is a transform fault 
B)  is a plate boundary 
C)  is the location of large earthquakes 
D)  is a transform fault that is the location of large earthquakes 
E)  all of these 
A)  is a transform fault 
B)  is a plate boundary 
C)  is the location of large earthquakes 
D)  is a transform fault that is the location of large earthquakes 
E)  all of these

Question 7

The Earth's magnetic field is due to ____.

Accepted Answer

A)  the presence of magnetic iron and nickel in the core 
B)  gravity 
C)  the occurrence of magnetite in all rocks 
D)  convection in the liquid outer core 
E)  none of these 
A)  the presence of magnetic iron and nickel in the core 
B)  gravity 
C)  the occurrence of magnetite in all rocks 
D)  convection in the liquid outer core 
E)  none of these

Question 8

At divergent plate boundaries,plates are moving ____________________.At these locations,new ____________________ forms.

Accepted Answer

The answer of At divergent plate boundaries,plates are moving ____________________.At...

Question 9

Briefly explain why the movement of continents over geologic time was the best explanation for polar wandering.

Accepted Answer

Since the Earth has only one magnetic no

Question 10

Slab pull and ridge push facilitate the movement of plates.

Accepted Answer

A) True 
 B)False

Question 11

At divergent plate boundaries,what are the operating forces?

Accepted Answer

A)  compressional 
B)  lateral shearing 
C)  tensional 
D)  thrusting 
E)  normal 
A)  compressional 
B)  lateral shearing 
C)  tensional 
D)  thrusting 
E)  normal

Question 12

Magnetic stripes in oceanic basalts are ____________________ and ____________________ around ocean ridges.

Accepted Answer

parallel,s

Question 13

There is active volcanism on bodies in the solar system besides Earth but only on other planets.

Accepted Answer

A) True 
 B)False

Question 14

What is one geologic method for determining the average rate of seafloor spreading?

Accepted Answer

The strips of oceanic crust can dated by

Question 15

The names of the plates on either side of the plate boundary that passes through California are ____________________ and ____________________.

Accepted Answer

Pacific,No

Question 16

When magma cools,the magnetic iron-bearing minerals align themselves with the Earth's magnetic field and record ____________________ and ____________________.

Accepted Answer

strength,d

Question 17

Briefly explain why there is so much oil in the Persian Gulf region.

Accepted Answer

During the Mesozoic,the Persian Gulf was

Question 18

Certain rock types can be used to determine the locations of past magnetic poles because ____.

Accepted Answer

A)  the Earth's magnetic poles have reversed many times during its history 
B)  the magnetic poles and geographic poles differ slightly 
C)  iron-bearing minerals align themselves in the direction of the current magnetic field when the rock cools below the Curie point 
D)  lava flows in Europe all showed that the continent was once located in the southern hemisphere 
E)  the north magnetic poles of each continent are identical for each geological period 
A)  the Earth's magnetic poles have reversed many times during its history 
B)  the magnetic poles and geographic poles differ slightly 
C)  iron-bearing minerals align themselves in the direction of the current magnetic field when the rock cools below the Curie point 
D)  lava flows in Europe all showed that the continent was once located in the southern hemisphere 
E)  the north magnetic poles of each continent are identical for each geological period

Question 19

The three types of convergent plate boundaries are ____________________-____________________,____________________-____________________,and ____________________-____________________.

Accepted Answer

oceanic-oceanic,ocea

Question 20

Geologists recognize which three major types of plate boundaries?

Accepted Answer

A)  resurgent, divergent, and emergent 
B)  convergent, divergent, and transform 
C)  transcurrent, oblique, and resurgent 
D)  emergent, transform, and convergent 
E)  transform, transcurrent, and translateral 
A)  resurgent, divergent, and emergent 
B)  convergent, divergent, and transform 
C)  transcurrent, oblique, and resurgent 
D)  emergent, transform, and convergent 
E)  transform, transcurrent, and translateral

Exam 2: Plate Tectonics: A Unifying Theory

Two sets of mountain ranges,which are continuous once the continents on either side of the Atlantic are joined,are located where?

The cause of magnetic reversals is a change in the structure of the Earth's inner core.

What was the principal reason why Wegener's theory of continental drift was rejected?

What did the differing paleomagnetic records for each continent show?

The transition zone from the exposed land to the ocean floor is called the

The San Andreas Fault that runs through California ____.

The Earth's magnetic field is due to ____.

At divergent plate boundaries,plates are moving ____________________.At these locations,new ____________________ forms.

Briefly explain why the movement of continents over geologic time was the best explanation for polar wandering.

Slab pull and ridge push facilitate the movement of plates.

At divergent plate boundaries,what are the operating forces?

Magnetic stripes in oceanic basalts are ____________________ and ____________________ around ocean ridges.

There is active volcanism on bodies in the solar system besides Earth but only on other planets.

What is one geologic method for determining the average rate of seafloor spreading?

The names of the plates on either side of the plate boundary that passes through California are ____________________ and ____________________.

When magma cools,the magnetic iron-bearing minerals align themselves with the Earth's magnetic field and record ____________________ and ____________________.

Briefly explain why there is so much oil in the Persian Gulf region.

Certain rock types can be used to determine the locations of past magnetic poles because ____.

The three types of convergent plate boundaries are ____________________-____________________,____________________-____________________,and ____________________-____________________.

Geologists recognize which three major types of plate boundaries?

Understanding Earth: A Dynamic and Evolving Planet

Minerals The Building Blocks of Rocks

Igneous Rocks and Plutons

Volcanoes and Volcanism

Weathering, Erosion, and Soil

Sediment and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earth's Interior

Deformation,Mountain Building,and Earth's Crust

Mass Wasting

Running Water Streams and Rivers

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Organic Evolution The Theory and Its Supporting Evidence

Precambrian Earth and Life History

Paleozoic Earth History

Paleozoic Life History

Mesozoic Earth and Life History

Cenozoic Earth and Life History

Geology in Perspective

Filters

At divergent plate boundaries,plates are moving .At these locations,new forms.

Magnetic stripes in oceanic basalts are and around ocean ridges.

The names of the plates on either side of the plate boundary that passes through California are and .

When magma cools,the magnetic iron-bearing minerals align themselves with the Earth's magnetic field and record and .

The three types of convergent plate boundaries are -,-,and -.