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


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 Atlantic
F) used to determine ocean structure beneath the sea floor
G) uses high frequency sound waves to measure ocean depth

H) A) and F)
I) D) and E)

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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.


A) metal sulfide deposits
B) pillow basalts
C) rift valley
D) seamounts
E) trenches

F) All of the above
G) A) and D)

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Older lithosphere is destroyed in association with:


A) deep-sea trenches.
B) fracture zones.
C) hydrothermal vents.
D) mid-ocean ridges.
E) spreading centers.

F) C) and D)
G) None of the above

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Sediments of the continental rise can exhibit characteristics similar to those formed by rivers on land.

A) True
B) False

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The continental shelf is generally defined as a steeply sloping zone extending from the shoreline to the shelf break.

A) True
B) False

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The deepest portions of the ocean are part of the relatively narrow features called submarine canyons.

A) True
B) False

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Oceanic ridges are cut by a number of transform faults, which offset spreading zones.

A) True
B) False

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Extending from the base of the continental rises into the deep-ocean basins are flat depositional surfaces called:


A) continental shelves.
B) continental slopes.
C) abyssal hills.
D) tablemounts.
E) abyssal plains.

F) B) and D)
G) All of the above

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E

All of the following are considered part of the continental margin except the:


A) continental rise.
B) continental shelf.
C) continental slope.
D) fracture zone.
E) submarine canyon.

F) B) and C)
G) C) and D)

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  -Briefly describe how submarine canyons are created? -Briefly describe how submarine canyons are created?

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Submarine canyons are narrow but deep v-...

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Seamounts form from ancient tablemounts.

A) True
B) False

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


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 Atlantic
F) used to determine ocean structure beneath the sea floor
G) uses high frequency sound waves to measure ocean depth

H) B) and C)
I) E) and F)

Correct Answer

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C

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.


A) abyssal hill
B) abyssal plain
C) submarine canyon
D) seamount
E) tablemount

F) A) and C)
G) A) and E)

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C

Warm-water (From 30°C to 350°C) hydrothermal vents form:


A) abyssal hills.
B) black smokers.
C) cold seeps.
D) turbidity currents.
E) white smokers.

F) A) and B)
G) C) and D)

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Characteristics of active continental margins include all of the following except:


A) broad continental shelves.
B) chains of islands.
C) deep-sea trenches.
D) thin sediment accumulation.
E) volcanic and earthquake activity.

F) A) and C)
G) A) and B)

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A sediment-laden current that flows off the continental shelf is called a turbidity current.

A) True
B) False

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Relatively few abyssal plains are located in the Pacific Ocean due to:


A) its smaller size compared to other ocean basins.
B) the presence of convergent active margins.
C) the absence of convergent active margins.
D) the presence of seamounts.
E) all of the above.

F) None of the above
G) D) and E)

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  -In which ocean basin are most ocean trenches found? Use plate tectonic processes to explain why. -In which ocean basin are most ocean trenches found? Use plate tectonic processes to explain why.

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Most ocean trenches are found in the Pac...

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Describe the relationship between turbidity currents and turbidite deposits.

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Turbidity currents are underwater curren...

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


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 boundaries
F) a generally flat zone extending from the shore to the shelf break
G) shallow-water areas close to continents

H) C) and G)
I) C) and E)

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