Question 1

The greatest mountain ranges on Earth lie on the ocean bottoms and extend more than 40,000 miles.

Accepted Answer

A) True 
 B)False  True

Question 2

The inner core is a 2450-km diameter _________ mass with temperatures up to 4300$\circ$C (7770$\circ$).

Accepted Answer

A) gaseous 
B) liquid 
C) solid 
A) gaseous 
B) liquid 
C) solid C

Question 3

After lava cools below the Curie point,which is about _____,atoms in iron-bearing minerals become magnetized in the direction of the Earth's magnetic field at that time and place.

Accepted Answer

A) 50$\circ$C 
B) 250$\circ$C 
C) 550$\circ$C 
D) 850$\circ$C 
E) 1150$\circ$C 
A) 50$\circ$C 
B) 250$\circ$C 
C) 550$\circ$C 
D) 850$\circ$C 
E) 1150$\circ$C C

Question 4

The oldest rocks on the ocean floors are about ________ years in age.

Accepted Answer

A) 50,000 
B) one million 
C) 200 million 
D) 2 billion 
E) 4.5 billion 
A) 50,000 
B) one million 
C) 200 million 
D) 2 billion 
E) 4.5 billion

Question 5

The heat that transformed the Earth early in its history came primarily from all but which of the following?

Accepted Answer

A) impact energy 
B) gravitational energy 
C) magnetic energy 
D) decay of radioactive elements 
A) impact energy 
B) gravitational energy 
C) magnetic energy 
D) decay of radioactive elements

Question 6

Recent work has suggested that the solid inner core may be spinning in the same direction as the surrounding Earth,only slower.

Accepted Answer

A) True 
 B)False

Question 7

The floor of the Atlantic Ocean is striped by parallel bands of magnetized rock that show alternating polarities in a pattern that is symmetrical and parallel to the mid-ocean spreading center.

Accepted Answer

A) True 
 B)False

Question 8

The rates of plate movement are comparable to those of human fingernail growth.

Accepted Answer

A) True 
 B)False

Question 9

The slide-past motions of long transform faults occur in all but which of the following?

Accepted Answer

A) In the northeastern Pacific as the Queen Charlotte fault,located near a sparsely populated region of Canada. 
B) Along the San Andreas Fault in California with its famous earthquakes. 
C) At the southwestern edge of the Pacific Ocean where the Alpine fault cuts across the South Island of New Zealand. 
D) Where the Indian subcontinent touches Asia. 
A) In the northeastern Pacific as the Queen Charlotte fault,located near a sparsely populated region of Canada. 
B) Along the San Andreas Fault in California with its famous earthquakes. 
C) At the southwestern edge of the Pacific Ocean where the Alpine fault cuts across the South Island of New Zealand. 
D) Where the Indian subcontinent touches Asia.

Question 10

The processes that reverse the polarity of the magnetic field are likely related to changes in the flow of the iron-rich liquid in the outer core.

Accepted Answer

A) True 
 B)False

Question 11

The hotspot-melting-through-lithosphere process forms lines of extinct volcanoes on the ocean floor,from youngest to oldest,______________________.

Accepted Answer

A) with random ages along the lines 
B) in a direction pointing toward the sun 
C) pointing at 90 degrees to the direction of plate movement 
D) pointing in the opposite direction of plate movement 
E) pointing in the direction of plate movement 
A) with random ages along the lines 
B) in a direction pointing toward the sun 
C) pointing at 90 degrees to the direction of plate movement 
D) pointing in the opposite direction of plate movement 
E) pointing in the direction of plate movement

Question 12

The greatest earthquakes in the world occur _____________.

Accepted Answer

A) where plates collide with each other 
B) where plates separate from one another 
C) where plates slide past each other 
D) in the interiors of individual plates 
A) where plates collide with each other 
B) where plates separate from one another 
C) where plates slide past each other 
D) in the interiors of individual plates

Question 13

The early differentiation of the Earth into a mantle and a core was created by ________________.

Accepted Answer

A) gravitational accretion of iron-rich particles in the core,followed by silicate-rich particles in the mantle 
B) nuclear fission in the center of the Earth,which converted hydrogen and helium to iron 
C) 
The buildup of heat and the melting of iron which was pulled by gravity to the center of the Earth 
A) gravitational accretion of iron-rich particles in the core,followed by silicate-rich particles in the mantle 
B) nuclear fission in the center of the Earth,which converted hydrogen and helium to iron 
C) 
The buildup of heat and the melting of iron which was pulled by gravity to the center of the Earth

Question 14

The ages of former volcanoes decrease with their distance from their parent hot spot.

Accepted Answer

A) True 
 B)False

Question 15

The time needed for a typical atom in an oceanic plate to complete a plate-tectonic cycle is ____________.

Accepted Answer

A) about a hundred thousand years 
B) about a million years 
C) about 10 million years 
D) in excess of 250 million years 
E) 
Material does not recycle via tectonic processes 
A) about a hundred thousand years 
B) about a million years 
C) about 10 million years 
D) in excess of 250 million years 
E) 
Material does not recycle via tectonic processes

Question 16

In the _______,evidence abounded,mechanisms seemed plausible,and the plate tectonic theory was developed and widely accepted.

Accepted Answer

A) mid-1930s 
B) mid-1940s 
C) mid-1950s 
D) mid-1960s 
E) mid-1970s 
A) mid-1930s 
B) mid-1940s 
C) mid-1950s 
D) mid-1960s 
E) mid-1970s

Question 17

The age of the Earth is about ________________.

Accepted Answer

A) 10 million years 
B) 100 million years 
C) 1000 million years 
D) 460 million years 
E) 4600 million years 
A) 10 million years 
B) 100 million years 
C) 1000 million years 
D) 460 million years 
E) 4600 million years

Question 18

When data from the Earth's magnetic field locked inside seafloor rocks became widely understood,skeptics around the world were convinced that seafloor spreading occurs and that the concept of plate tectonics is valid.

Accepted Answer

A) True 
 B)False

Question 19

As radioactive atoms decay,energy is _________.

Accepted Answer

A) absorbed 
B) released 
C) neither absorbed nor released 
D) may be absorbed or released,depending on which isotope is involved in the decay 
A) absorbed 
B) released 
C) neither absorbed nor released 
D) may be absorbed or released,depending on which isotope is involved in the decay

Question 20

The active triple junction in _________ Africa is geologically young,having begun about 25 million years ago.

Accepted Answer

A) southwestern 
B) southeastern 
C) northeastern 
D) western 
E) southern 
A) southwestern 
B) southeastern 
C) northeastern 
D) western 
E) southern

The greatest mountain ranges on Earth lie on the ocean bottoms and extend more than 40,000 miles.

The inner core is a 2450-km diameter _________ mass with temperatures up to 4300^$\circ$C (7770^$\circ$).

After lava cools below the Curie point,which is about _____,atoms in iron-bearing minerals become magnetized in the direction of the Earth's magnetic field at that time and place.

The oldest rocks on the ocean floors are about ________ years in age.

The heat that transformed the Earth early in its history came primarily from all but which of the following?

Recent work has suggested that the solid inner core may be spinning in the same direction as the surrounding Earth,only slower.

The floor of the Atlantic Ocean is striped by parallel bands of magnetized rock that show alternating polarities in a pattern that is symmetrical and parallel to the mid-ocean spreading center.

The rates of plate movement are comparable to those of human fingernail growth.

The slide-past motions of long transform faults occur in all but which of the following?

The processes that reverse the polarity of the magnetic field are likely related to changes in the flow of the iron-rich liquid in the outer core.

The hotspot-melting-through-lithosphere process forms lines of extinct volcanoes on the ocean floor,from youngest to oldest,______________________.

The greatest earthquakes in the world occur _____________.

The early differentiation of the Earth into a mantle and a core was created by ________________.

The ages of former volcanoes decrease with their distance from their parent hot spot.

The time needed for a typical atom in an oceanic plate to complete a plate-tectonic cycle is ____________.

In the _______,evidence abounded,mechanisms seemed plausible,and the plate tectonic theory was developed and widely accepted.

The age of the Earth is about ________________.

When data from the Earth's magnetic field locked inside seafloor rocks became widely understood,skeptics around the world were convinced that seafloor spreading occurs and that the concept of plate tectonics is valid.

As radioactive atoms decay,energy is _________.

The active triple junction in _________ Africa is geologically young,having begun about 25 million years ago.

Natural Disasters and the Human Population

Earthquake Geology and Seismology

Plate Tectonics and Earthquakes

Earthquakes Throughout the United States and Canada

Volcanic Eruptions: Plate Tectonics and Magmas

Volcano Processes and Deadly Events

Tsunami Versus Wind-Caused Waves

External Energy Fuels Weather and Climate

Tornadoes, Lightning, Heat, and Cold

Hurricanes

Climate Change

Floods

Fire

Mass Movements

Coastal Processes and Hazards

Impacts With Space Objects

Filters

Exam 2: Internal Energy and Plate Tectonics

The greatest mountain ranges on Earth lie on the ocean bottoms and extend more than 40,000 miles.

The inner core is a 2450-km diameter _________ mass with temperatures up to 4300 ∘\circ∘ C (7770 ∘\circ∘ ).

After lava cools below the Curie point,which is about _____,atoms in iron-bearing minerals become magnetized in the direction of the Earth's magnetic field at that time and place.

The oldest rocks on the ocean floors are about ________ years in age.

The heat that transformed the Earth early in its history came primarily from all but which of the following?

Recent work has suggested that the solid inner core may be spinning in the same direction as the surrounding Earth,only slower.

The floor of the Atlantic Ocean is striped by parallel bands of magnetized rock that show alternating polarities in a pattern that is symmetrical and parallel to the mid-ocean spreading center.

The rates of plate movement are comparable to those of human fingernail growth.

The slide-past motions of long transform faults occur in all but which of the following?

The processes that reverse the polarity of the magnetic field are likely related to changes in the flow of the iron-rich liquid in the outer core.

The hotspot-melting-through-lithosphere process forms lines of extinct volcanoes on the ocean floor,from youngest to oldest,______________________.

The greatest earthquakes in the world occur _____________.

The early differentiation of the Earth into a mantle and a core was created by ________________.

The ages of former volcanoes decrease with their distance from their parent hot spot.

The time needed for a typical atom in an oceanic plate to complete a plate-tectonic cycle is ____________.

In the _______,evidence abounded,mechanisms seemed plausible,and the plate tectonic theory was developed and widely accepted.

The age of the Earth is about ________________.

When data from the Earth's magnetic field locked inside seafloor rocks became widely understood,skeptics around the world were convinced that seafloor spreading occurs and that the concept of plate tectonics is valid.

As radioactive atoms decay,energy is _________.

The active triple junction in _________ Africa is geologically young,having begun about 25 million years ago.

Natural Disasters and the Human Population

Earthquake Geology and Seismology

Plate Tectonics and Earthquakes

Earthquakes Throughout the United States and Canada

Volcanic Eruptions: Plate Tectonics and Magmas

Volcano Processes and Deadly Events

Tsunami Versus Wind-Caused Waves

External Energy Fuels Weather and Climate

Tornadoes, Lightning, Heat, and Cold

Hurricanes

Climate Change

Floods

Fire

Mass Movements

Coastal Processes and Hazards

Impacts With Space Objects

Filters

The inner core is a 2450-km diameter _________ mass with temperatures up to 4300^$\circ$C (7770^$\circ$).