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Topography Of The Ocean Floor
Test Description: Review of the topography of the ocean floor
Instructions: Answer all questions to get your test result.
1) The seafloor is composed of sediment and
A
conglomerate rock.
B
basaltic rock.
C
alluvial fans.
D
hot, flowing lava.
2) The older the oceanic crust, the ____ the sediments that sit atop it.
A
thinner
B
thicker
3) Crust is created at ______.
A
abyssal plains
B
guyots
C
mid-ocean ridges
D
trenches
4) Crust is destroyed at ____.
A
trenches
B
abyssal plains
C
mid-ocean ridges
D
guyots
5) _____ form at subduction zones.
A
trenches
B
mid-ocean ridges
C
guyots
D
abyssal plains
6) Mid-ocean ridges form at _____ boundaries.
A
subductive
B
divergent
C
transform
D
convergent
7) What process(es) recycles the crust of the spreading ocean floor?
A
weathering and erosion
B
uplift and folding
C
subduction
D
volcanism
8) This is the wide, flat, sediment-covered part of the ocean floor.
A
Abyssal Plain
B
Guyot
C
Rift Valley
D
Mid-ocean ridge
9) A gap in the ocean floor that results from two plates pulling apart, generally found in the middle of a mid-ocean ridge
A
trench
B
guyot
C
rift valley
D
continental slope
10) These are underwater mountains that are volcanic in origin.
A
abyssal plains
B
trenches
C
rift valleys
D
seamounts
11) This is a seamount that has grown above sea level, then eroded and weathered flat by waves at its top--eventually carried deeper and submerged by plate movement
A
trench
B
mid-ocean ridge
C
volcanic island
D
guyot
12) This is the gradually sloping area that extends from the shore out to the continental slope.
A
shoreline
B
abyssal plain
C
continental shelf
D
continetnal slope
13) Where are ocean floor features most likely to occur?
A
along tectonic plate boudaries
B
at the deepest part of the ocean
C
along continental shelves
D
near the coastline
*select an answer for all questions
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