Question 1

Directly seaward of the continental shelf is a more steeply sloping region called the:

Accepted Answer

A)  abyssal plain.
B)  continental rise.
C)  continental slope.
D)  mid-ocean ridge.
E)  trench.

Question 2

Discuss the development of scientific instruments in the 20ᵗʰ century used to map the seafloor. Include in your answer the timeframe when each instrument was developed and a brief description of how it works.

Accepted Answer

In the 20th century, several scientific ...

Question 3

Due to the very harsh environmental conditions, very few types of organisms are found in association with hydrothermal vents.

Accepted Answer

A) True 
 B)False

Question 4

Match the term with the appropriate phrase. You may use each answer once, more than once or not at all.
-hypsographic curve

Accepted Answer

A)  used to map ocean floor from space
B)  cumulative plot of area versus depth or elevation
C)  measurement of ocean depth and seafloor topography
D)  a method of mapping the topography of the ocean floor along a strip up to 60 km
E)  used echo soundings in 1952 to identify mid-ocean ridge in South AtlanticF) used to determine ocean structure beneath the sea floorG) uses high frequency sound waves to measure ocean depth

Question 5

List and describe the different types of hydrothermal vents.

Accepted Answer

Hydrothermal vents are openings in the o...

Question 6

Volcanic peaks on the deep-ocean floor with conical tops are called:

Accepted Answer

A)  seamounts.
B)  tablemounts.
C)  submarine canyons.
D)  oceanic trenches.
E)  oceanic ridges.

Question 7

The three major provinces of the ocean floor are continental margins, deep-ocean basins, and submarine canyons.

Accepted Answer

A) True 
 B)False

Question 8

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Accepted Answer

A)   continental shelf
B)   abyssal hill
C)   shelf break
D)   continental rise
E)   continental slope

Question 9

Underwater avalanches of muddy water mixed with rocks and debris are:

Accepted Answer

A)  deep sea fans.
B)  graded bedding.
C)  turbidity currents.
D)  turbidite deposits.
E)  white smokers.

Question 10

With respect to mid-ocean ridges, transform faults are:

Accepted Answer

A)  associated with hydrothermal vents.
B)  located in submarine canyons.
C)  parallel to the rift valley.
D)  perpendicular to the ridge axis.

Question 11

Passive continental margins are characterized by all of the following except:

Accepted Answer

A)  broad continental shelves.
B)  deep-sea trenches.
C)  shallow coastal waters.
D)  thick sediment accumulation.
E)  very little volcanic and earthquake activity.

Question 12

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Accepted Answer

A)   global positioning system (GPS) 
B)   GLORIA
C)   precision depth recorder (PDR) 
D)   SeaBeam
E)   Sea MARC

Question 13

Transform faults have all of the following characteristics except:

Accepted Answer

A)  they occur along transform plate boundaries.
B)  movement occurs in the same direction.
C)  they have many earthquakes.
D)  they occur between offset oceanic ridge segments.

Question 14

Match the term with the appropriate phrase. You may use each answer once, more than once or not at all.
-continental shelf

Accepted Answer

A)  flat depositional surfaces that cover extensive portions of the deep-ocean basins
B)  deep linear scars on the deep-ocean floor caused by plate convergence
C)  narrow and deep valleys on continental slopes
D)  continental margins not in close proximity to any plate boundary
E)  continental margin associated with lithospheric plate boundariesF) a generally flat zone extending from the shore to the shelf breakG) shallow-water areas close to continents

Question 15

The two relatively flat areas on the hypsographic curve represent:

Accepted Answer

A)  continental mountains and abyssal plains.
B)  continental mountains and mid-ocean ridges.
C)  continental slopes and deep-sea trenches.
D)  some interior continental areas/coastal plains and abyssal plains on the ocean floor.
E)  some interior continental areas/coastal plains and mid-ocean ridges.

Question 16

New lithosphere is produced in association with:

Accepted Answer

A)  deep-sea trenches.
B)  fracture zones.
C)  hydrothermal vents.
D)  oceanic ridges.
E)  transform faults.

Question 17

The correct order of seafloor features from the coast to the mid-ocean ridge is:

Accepted Answer

A)  abyssal plain, rise, slope, shelf.
B)  abyssal plain, shelf, slope, rise.
C)  rise, abyssal plain, slope, shelf.
D)  shelf, slope, rise, abyssal plain.
E)  slope, rise, shelf, abyssal plain.

Question 18

Volcanic features on the ocean floor that are less than 1,000 meters (0.6 miles) tall are called:

Accepted Answer

A)  seamounts.
B)  tablemounts.
C)  abyssal hills or seaknolls.
D)  oceanic trenches.
E)  oceanic ridges.

Question 19

Match the term with the appropriate phrase. You may use each answer once, more than once or not at all.
-precision-depth recorder (PDR)

Accepted Answer

A)  used to map ocean floor from space
B)  cumulative plot of area versus depth or elevation
C)  measurement of ocean depth and seafloor topography
D)  a method of mapping the topography of the ocean floor along a strip up to 60 km
E)  used echo soundings in 1952 to identify mid-ocean ridge in South AtlanticF) used to determine ocean structure beneath the sea floorG) uses high frequency sound waves to measure ocean depth

Question 20

Match the term with the appropriate phrase. You may use each answer once, more than once or not at all.
-multi-beam sonar

Accepted Answer

A)  used to map ocean floor from space
B)  cumulative plot of area versus depth or elevation
C)  measurement of ocean depth and seafloor topography
D)  a method of mapping the topography of the ocean floor along a strip up to 60 km
E)  used echo soundings in 1952 to identify mid-ocean ridge in South AtlanticF) used to determine ocean structure beneath the sea floorG) uses high frequency sound waves to measure ocean depth

Exam 3: Marine Provinces

The three major provinces of the ocean floor are continental margins, deep-ocean basins, and submarine canyons.

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Volcanic peaks on the deep-ocean floor with conical tops are called:

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With respect to mid-ocean ridges, transform faults are:

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Discuss the development of scientific instruments in the 20ᵗʰ century used to map the seafloor. Include in your answer the timeframe when each instrument was developed and a brief description of how it works.

Correct AnswerAnswered by ExamLex AIIn the 20th century, several scientific ...View AnswerShow Answer

Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -multi-beam sonar

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Underwater avalanches of muddy water mixed with rocks and debris are:

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Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Correct AnswerverifiedShow Answer

New lithosphere is produced in association with:

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List and describe the different types of hydrothermal vents.

Correct AnswerAnswered by ExamLex AIHydrothermal vents are openings in the o...View AnswerShow Answer

Volcanic features on the ocean floor that are less than 1,000 meters (0.6 miles) tall are called:

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Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -precision-depth recorder (PDR)

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Due to the very harsh environmental conditions, very few types of organisms are found in association with hydrothermal vents.

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Transform faults have all of the following characteristics except:

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The correct order of seafloor features from the coast to the mid-ocean ridge is:

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Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -continental shelf

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Directly seaward of the continental shelf is a more steeply sloping region called the:

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The two relatively flat areas on the hypsographic curve represent:

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Passive continental margins are characterized by all of the following except:

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Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -hypsographic curve

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Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Correct AnswerverifiedShow Answer

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In the 20th century, several scientific ...
View Answer

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Hydrothermal vents are openings in the o...
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