Question 1

The Moho ________.

Accepted Answer

A)  lies at uniform depth everywhere it is found in Earth
B)  is found deeper underneath continents than under oceans
C)  is found deeper underneath oceans than under continents
D)  is found well below the crust/mantle boundaryE) None of the above
F) All of the above

Question 2

The densest layer of Earth is the ________.

Accepted Answer

A)  crust
B)  mantle
C)  outer core
D)  inner coreE) C) and D)
F) A) and D)

Question 3

As compared to the rocks that make up the crust,Earth as a whole is ________.

Accepted Answer

A)  considerably more dense
B)  considerably less dense
C)  slightly less dense
D)  about the same densityE) B) and D)
F) All of the above

Question 4

Glass is different from a mineral because it ________.

Accepted Answer

A)  is not naturally occurring
B)  is not a solid
C)  does not have atoms arranged in an orderly pattern
D)  contains carbon and is therefore organicE) B) and C)
F) A) and B)

Question 5

The velocities of seismic waves traveling from earthquake foci ________.

Accepted Answer

A)  are uniform throughout all layers of Earth
B)  decrease at a constant rate with depth
C)  increase at a constant rate with depth
D)  generally increase with depth,but occasionally make abrupt jumpsE) B) and C)
F) All of the above

Question 6

Of the three primary compositional layers of the Earth (crust,mantle,core) ,which is the thickest layer?

Accepted Answer

A)  crust
B)  mantle
C)  core
D)  The mantle and core are the same thickness.E) A) and D)
F) A) and C)

Question 7

If one were to see a comet passing by Earth,it is likely that this comet originated from ________.

Accepted Answer

A)  the asteroid belt
B)  the Kuiper belt
C)  a neighboring galaxy
D)  interplanetary spaceE) B) and C)
F) A) and B)

Question 8

Hot,liquid rock beneath Earth's surface is termed ________.

Accepted Answer

A)  lava
B)  magma
C)  volatiles
D)  mantleE) A) and B)
F) A) and C)

Question 9

The lithosphere lies directly above the ________.

Accepted Answer

A)  transition zone
B)  crust
C)  asthenosphere
D)  lower mantleE) A) and C)
F) A) and B)

Question 10

Earth's magnetic field is generated by the ________.

Accepted Answer

A)  flow of the liquid inner core
B)  flow of the liquid outer core
C)  convective flow of the mantle
D)  magnetic minerals within the crustE) A) and D)
F) B) and C)

Question 11

Earth's geothermal gradient is the rate of temperature change incurred by ________.

Accepted Answer

A)  increasing altitude in the atmosphere
B)  increasing depth at ocean trenches
C)  traversing from either pole toward the equator
D)  traversing down within Earth's interiorE) A) and C)
F) None of the above

Question 12

As compared to the asthenosphere,the lithosphere is ________.

Accepted Answer

A)  cooler and more able to flow
B)  hotter and more able to flow
C)  cooler and less able to flow
D)  hotter and less able to flowE) None of the above
F) A) and B)

Question 13

From left to right,correctly label each section of this slice of the Earth.Note that 1 starts at the surface of the Earth and 6 ends at the center of the Earth.

Accepted Answer

A)  crust,liquid outer core,transition zone,solid inner core,upper mantle,lower mantle
B)  crust,upper mantle,transition zone,lower mantle,liquid outer core,solid inner core
C)  crust,transition zone,upper mantle,lower mantle,liquid outer core,solid inner core
D)  transition zone,crust,liquid outer core,solid inner core,upper mantle,lower mantleE) B) and D)
F) None of the above

Question 14

The region of space that contains all of the material of our Solar System (shown below) is termed the ________.

Accepted Answer

A)  Kuiper belt
B)  heliosphere
C)  cryosphere
D)  Oort cloudE) B) and D)
F) A) and B)

Question 15

In the whole Earth,the four most common elements (by mass) are oxygen,silicon,magnesium,and ________.

Accepted Answer

A)  copper
B)  lead
C)  iron
D)  zincE) All of the above
F) B) and D)

Question 16

Which of the following statements about Earth's core is NOT true?

Accepted Answer

A)  Its metallic content is likely similar to what has been found in metallic meteorites.
B)  It is partly liquid and partly solid.
C)  It is composed of an iron alloy (mostly iron with a few other metallic elements mixed in) .
D)  By volume,it is the largest compositional layer of the Earth.E) B) and D)
F) A) and D)

Question 17

Presently,Earth's atmosphere is dominated by which two gases?

Accepted Answer

A)  hydrogen and helium
B)  oxygen and carbon dioxide
C)  nitrogen and oxygen
D)  carbon dioxide and sulfur dioxideE) A) and B)
F) C) and D)

Question 18

Substances that can be transformed to a gas at relatively low temperatures are termed ________.

Accepted Answer

A)  glasses
B)  melts
C)  volatiles
D)  mineraloidsE) C) and D)
F) All of the above

Question 19

If one were to ride a hot air balloon up into the atmosphere,one would experience the concentration of gases ________.

Accepted Answer

A)  becoming denser
B)  becoming less dense
C)  remaining the same
D)  increasing for the first 10 km,then starting to declineE) A) and B)
F) B) and D)

Question 20

The most common minerals within Earth are ________.

Accepted Answer

A)  silicates
B)  carbonates
C)  oxides
D)  hydroxidesE) C) and D)
F) B) and D)

Exam 2: Journey to the Center of the Earth

As compared to the asthenosphere,the lithosphere is ________.

Correct AnswerverifiedShow Answer

Glass is different from a mineral because it ________.

Correct AnswerverifiedShow Answer

The most common minerals within Earth are ________.

Correct AnswerverifiedShow Answer

Which of the following statements about Earth's core is NOT true?

Correct AnswerverifiedShow Answer

From left to right,correctly label each section of this slice of the Earth.Note that 1 starts at the surface of the Earth and 6 ends at the center of the Earth.

Correct AnswerverifiedShow Answer

If one were to see a comet passing by Earth,it is likely that this comet originated from ________.

Correct AnswerverifiedShow Answer

If one were to ride a hot air balloon up into the atmosphere,one would experience the concentration of gases ________.

Correct AnswerverifiedShow Answer

Earth's geothermal gradient is the rate of temperature change incurred by ________.

Correct AnswerverifiedShow Answer

The lithosphere lies directly above the ________.

Correct AnswerverifiedShow Answer

Substances that can be transformed to a gas at relatively low temperatures are termed ________.

Correct AnswerverifiedShow Answer

The Moho ________.

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The velocities of seismic waves traveling from earthquake foci ________.

Correct AnswerverifiedShow Answer

The region of space that contains all of the material of our Solar System (shown below) is termed the ________.

Correct AnswerverifiedShow Answer

In the whole Earth,the four most common elements (by mass) are oxygen,silicon,magnesium,and ________.

Correct AnswerverifiedShow Answer

The densest layer of Earth is the ________.

Correct AnswerverifiedShow Answer

Hot,liquid rock beneath Earth's surface is termed ________.

Correct AnswerverifiedShow Answer

As compared to the rocks that make up the crust,Earth as a whole is ________.

Correct AnswerverifiedShow Answer

Of the three primary compositional layers of the Earth (crust,mantle,core) ,which is the thickest layer?

Correct AnswerverifiedShow Answer

Earth's magnetic field is generated by the ________.

Correct AnswerverifiedShow Answer

Presently,Earth's atmosphere is dominated by which two gases?

Correct AnswerverifiedShow Answer

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