Question 1

The west coast of South America is an active continental margin.As such,it is characterized by all of the following except:

Accepted Answer

A)  Earthquakes.
B)  Volcanoes.
C)  Wide continental shelf.
D)  Steep and rocky shorelines.
E)  Steep continental slope.F) A) and E)
G) A) and B)

Question 2

The shallow part of the continental margin that is closer to land and is a critical marine habitat because light can reach all the way to the bottom in most of it is known as:

Accepted Answer

A)  Shelf break.
B)  Continental slope.
C)  Continental rise.
D)  Edge of the abyssal plain.
E)  Continental shelf.F) A) and E)
G) A) and D)

Question 3

The thinnest layer of the earth is the:

Accepted Answer

A)  Inner core.
B)  Outer core.
C)  Crust.
D)  Mantle.E) A) and D)
F) A) and C)

Question 4

Density is:

Accepted Answer

A)  The mass of a substance per unit volume.
B)  A measure of weight.
C)  The mass of a substance multiplied by its percentage volume of water.
D)  A measure of volume.
E)  The volume occupied by a particular substance in relation to that of water.F) None of the above
G) D) and E)

Question 5

Evidence of plate techtonics is provided by:

Accepted Answer

A)  Magnetic anomalies/paleomagnetic evidence.
B)  Sea floor spreading.
C)  The existence of mid ocean ridges.
D)  All answers are correct.
E)  Sea floor spreading and The existence of mid ocean ridges only.F) C) and D)
G) B) and E)

Question 6

Which of the following is not true of oceanic crust?

Accepted Answer

A)  It is thinner than continental crust
B)  It is denser than continental crust
C)  It is geologically younger in most places than continental crust
D)  It lies below sea level
E)  It consists mostly of graniteF) None of the above
G) C) and D)

Question 7

The type of plate boundary where plates move past each other in a sort of lateral motion is called:

Accepted Answer

A)  Island arc.
B)  Subduction zone.
C)  Trench.
D)  Convection zone.
E)  Shear boundary.F) A) and B)
G) A) and C) E

Question 8

The most biologically rich part of the ocean is the:

Accepted Answer

A)  Shelf break.
B)  Continental shelf.
C)  Continental slope.
D)  Continental rise.
E)  Deep-sea floor.F) A) and D)
G) A) and E) B

Question 9

The name of the vast single world ocean that was present about 200 million years ago is:

Accepted Answer

A)  Sinus Borealis.
B)  Pangaea.
C)  Tethys.
D)  Panthalassa.
E)  Gondwana.F) A) and C)
G) C) and D)

Question 10

Which of these places is an example of an island arch along a trench:

Accepted Answer

A)  Aleutian Islands.
B)  Hawaiian Islands.
C)  Australia.
D)  Galápagos Islands.
E)  Bermuda.F) A) and E)
G) B) and C)

Question 11

The Big Bang was:

Accepted Answer

A)  The origin of the Earth's magnetic field.
B)  The beginning of plate tectonics and continental drift.
C)  The origin of the oceans as water condensed on Earth.
D)  The giant cosmic explosion that occurred 13.7 billion years ago and created the Universe.E) B) and C)
F) A) and B)

Question 12

Which of the following is true about lithospheric plates?

Accepted Answer

A)  Only contain continental crust
B)  Only contain oceanic crust
C)  Collide with one another at the mid-ocean ridge
D)  Float on the upper mantle
E)  Are directly connected with the inner core of the earthF) A) and B)
G) A) and C)

Question 13

The world's smallest and shallowest ocean is:

Accepted Answer

A)  Atlantic Ocean.
B)  Arctic Ocean.
C)  Indian Ocean.
D)  Antarctic Ocean.
E)  Pacific Ocean.F) A) and C)
G) A) and E)

Question 14

How much of the Earth's surface is covered by the world ocean?

Accepted Answer

A)  53%
B)  65%
C)  71%
D)  78%
E)  80%F) A) and D)
G) All of the above

Question 15

The world's largest and deepest ocean is:

Accepted Answer

A)  Atlantic Ocean.
B)  Arctic Ocean.
C)  Indian Ocean.
D)  Antarctic Ocean.
E)  Pacific Ocean.F) A) and D)
G) A) and C)

Question 16

The outer edge of the continental margin is the:

Accepted Answer

A)  Shelf break.
B)  Continental slope.
C)  Continental rise.
D)  Edge of the abyssal plain.
E)  Continental edge.F) All of the above
G) A) and E)

Question 17

Which of the following statements is NOT true?

Accepted Answer

A)  Oceanic crust is made of a rock-type called basalt
B)  Oceanic crust is denser than continental crust
C)  Oceanic crust is thinner than continental crust
D)  Oceanic crust is older than continental crust
E)  There are significant chemical differences between oceanic and continental crustF) A) and E)
G) D) and E) D

Question 18

Black smoker stacks or columns form as a result of the accumulation of:

Accepted Answer

A)  Deep-water animals.
B)  Lava.
C)  Biogenous sediments.
D)  Metallic-sulfide minerals reacting with seawater.
E)  Material released from the formation of trenches.F) All of the above
G) A) and B)

Question 19

The friction zone along the shear boundary such as the one in California between two lithospheric plates is called a:

Accepted Answer

A)  Fault.
B)  Rift.
C)  Trench.
D)  Mid-ocean ridge.
E)  Sea.F) D) and E)
G) A) and E)

Question 20

The semi-solid layer of the earth found below the crust and outside of the core is called the:

Accepted Answer

A)  Inner core.
B)  Mantle.
C)  Inner crust.
D)  Outer core.
E)  Oceanic crust.F) B) and E)
G) D) and E)

Exam 2: The Sea Floor

The west coast of South America is an active continental margin.As such,it is characterized by all of the following except:

Correct AnswerverifiedShow Answer

The shallow part of the continental margin that is closer to land and is a critical marine habitat because light can reach all the way to the bottom in most of it is known as:

Correct AnswerverifiedShow Answer

The thinnest layer of the earth is the:

Correct AnswerverifiedShow Answer

Density is:

Correct AnswerverifiedShow Answer

Evidence of plate techtonics is provided by:

Correct AnswerverifiedShow Answer

Which of the following is not true of oceanic crust?

Correct AnswerverifiedShow Answer

The type of plate boundary where plates move past each other in a sort of lateral motion is called:

Correct AnswerverifiedE

The most biologically rich part of the ocean is the:

Correct AnswerverifiedB

The name of the vast single world ocean that was present about 200 million years ago is:

Correct AnswerverifiedShow Answer

Which of these places is an example of an island arch along a trench:

Correct AnswerverifiedShow Answer

The Big Bang was:

Correct AnswerverifiedShow Answer

Which of the following is true about lithospheric plates?

Correct AnswerverifiedShow Answer

The world's smallest and shallowest ocean is:

Correct AnswerverifiedShow Answer

How much of the Earth's surface is covered by the world ocean?

Correct AnswerverifiedShow Answer

The world's largest and deepest ocean is:

Correct AnswerverifiedShow Answer

The outer edge of the continental margin is the:

Correct AnswerverifiedShow Answer

Which of the following statements is NOT true?

Correct AnswerverifiedD

Black smoker stacks or columns form as a result of the accumulation of:

Correct AnswerverifiedShow Answer

The friction zone along the shear boundary such as the one in California between two lithospheric plates is called a:

Correct AnswerverifiedShow Answer

The semi-solid layer of the earth found below the crust and outside of the core is called the:

Correct AnswerverifiedShow Answer

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E

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B

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D

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