Question 1

Which of the following letters marks the Bering Sea and Aleutian Islands off Alaska?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) B) and C)
G) C) and E)

Question 2

How do most salt deposits form?

Accepted Answer

A)   dense slurries of sediment and water along continental slopes
B)   rapid deposition offshore of deltas, like in the Gulf of Mexico
C)   evaporation of water, such as in restricted seaways
D)   conversion of limestone to dolostoneE) A) and B)
F) C) and D)

Question 3

Which of these numbered features is an atoll?

Accepted Answer

A)   1
B)   2
C)   3
D)   all of these
E)   none of theseF) B) and E)
G) A) and B)

Question 4

In the ocean Investigation in the textbook, what feature is present at the end of a line of islands?

Accepted Answer

A)   submarine canyons
B)   a submarine fan
C)   an oceanic plateau
D)   all of theseE) C) and D)
F) A) and D) C

Question 5

Which of the following letters marks the Sea of Japan?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) B) and E)
G) C) and D)

Question 6

Which area shown on the map has the greatest seafloor depth?

Accepted Answer

A)   T)  trench
B)   P)  passive margin
C)   R)  oceanic ridgesD) A) and B)
E) A) and C)

Question 7

Which sea was a lake prior to being flooded by the ocean at the end of the Ice Age?

Accepted Answer

A)   Black Sea
B)   Caspian Sea
C)   Persian Gulf
D)   Mediterranean SeaE) A) and C)
F) C) and D)

Question 8

Submerged ridges in the Philippine Sea were formed by a:

Accepted Answer

A)   back-arc basin
B)   trench
C)   hot spotD) A) and B)
E) All of the above

Question 9

What do the island chains of Hawaii, Tahiti, and Tristan da Cunha have in common?

Accepted Answer

A)   They formed from hot spots.
B)   They are part of island arcs.
C)   They are part of an oceanic plateau.D) A) and C)
E) A) and B)

Question 10

Which of these numbered features is on the continental slope?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   none of theseF) C) and D)
G) A) and D)

Question 11

Approximately when did the central Atlantic Ocean form?

Accepted Answer

A)   four billion years go
B)   two billion years ago
C)   two hundred million years ago
D)   twenty million years ago
E)   two thousand years agoF) B) and C)
G) All of the above

Question 12

This figure shows ages of seafloor. Which of the numbered sites is on the shallowest seafloor, based on its position?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) A) and C)
F) A) and B)

Question 13

Which of these numbered features is on the continental shelf?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   none of theseF) A) and B)
G) C) and D)

Question 14

Which of the following letters marks the Persian Gulf?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) C) and E)
G) A) and B)

Question 15

Most oceanic islands and seamounts are:

Accepted Answer

A)   small pieces rifted apart from continents
B)   places where the seafloor has been buckled upward by convergence
C)   constructed by volcanic eruptions that first occur under water
D)   large fan-shaped mounds deposited by turbidity currentsE) None of the above
F) C) and D) C

Question 16

Which of these numbers has the thinnest sequence of marine sediments?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   none of theseF) D) and E)
G) A) and E)

Question 17

Which part of the Atlantic Ocean was the most recently formed?

Accepted Answer

A)   North Atlantic
B)   Central Atlantic
C)   South Atlantic
D)   Pacific OceanE) C) and D)
F) None of the above

Question 18

What is the ultimate source of food for animals living around deep-sea hydrothermal vents?

Accepted Answer

A)   sunlight and photosynthesis
B)   the decay of creatures that float on the ocean surface and settle to the bottom
C)   nuclear energy from the heated uranium-rich rocks
D)   bacteria that break down hydrogen sulfideE) B) and C)
F) A) and D)

Question 19

Which sea is shallow because it is underlain by continental crust?

Accepted Answer

A)   Mediterranean Sea
B)   Red Sea
C)   Black Sea
D)   Persian GulfE) B) and C)
F) A) and D) D

Question 20

Which area shown on the map has the shallowest seafloor depth?

Accepted Answer

A)   P)  passive continental margin
B)   R)  oceanic ridge
C)   T)  trenchD) B) and C)
E) A) and C)

Exam 10: Seafloor and Continental Margins

Which of the following letters marks the Bering Sea and Aleutian Islands off Alaska?

Correct AnswerverifiedShow Answer

How do most salt deposits form?

Correct AnswerverifiedShow Answer

Which of these numbered features is an atoll?

Correct AnswerverifiedShow Answer

In the ocean Investigation in the textbook, what feature is present at the end of a line of islands?

Correct AnswerverifiedC

Which of the following letters marks the Sea of Japan?

Correct AnswerverifiedShow Answer

Which area shown on the map has the greatest seafloor depth?

Correct AnswerverifiedShow Answer

Which sea was a lake prior to being flooded by the ocean at the end of the Ice Age?

Correct AnswerverifiedShow Answer

Submerged ridges in the Philippine Sea were formed by a:

Correct AnswerverifiedShow Answer

What do the island chains of Hawaii, Tahiti, and Tristan da Cunha have in common?

Correct AnswerverifiedShow Answer

Which of these numbered features is on the continental slope?

Correct AnswerverifiedShow Answer

Approximately when did the central Atlantic Ocean form?

Correct AnswerverifiedShow Answer

This figure shows ages of seafloor. Which of the numbered sites is on the shallowest seafloor, based on its position?

Correct AnswerverifiedShow Answer

Which of these numbered features is on the continental shelf?

Correct AnswerverifiedShow Answer

Which of the following letters marks the Persian Gulf?

Correct AnswerverifiedShow Answer

Most oceanic islands and seamounts are:

Correct AnswerverifiedC

Which of these numbers has the thinnest sequence of marine sediments?

Correct AnswerverifiedShow Answer

Which part of the Atlantic Ocean was the most recently formed?

Correct AnswerverifiedShow Answer

What is the ultimate source of food for animals living around deep-sea hydrothermal vents?

Correct AnswerverifiedShow Answer

Which sea is shallow because it is underlain by continental crust?

Correct AnswerverifiedD

Which area shown on the map has the shallowest seafloor depth?

Correct AnswerverifiedShow Answer

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C

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C

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D

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