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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
hot, flowing lava.
D
alluvial fans.
2) The older the oceanic crust, the ____ the sediments that sit atop it.
A
thicker
B
thinner
3) Crust is created at ______.
A
mid-ocean ridges
B
trenches
C
guyots
D
abyssal plains
4) Crust is destroyed at ____.
A
guyots
B
mid-ocean ridges
C
abyssal plains
D
trenches
5) _____ form at subduction zones.
A
trenches
B
mid-ocean ridges
C
abyssal plains
D
guyots
6) Mid-ocean ridges form at _____ boundaries.
A
subductive
B
transform
C
convergent
D
divergent
7) What process(es) recycles the crust of the spreading ocean floor?
A
subduction
B
uplift and folding
C
weathering and erosion
D
volcanism
8) This is the wide, flat, sediment-covered part of the ocean floor.
A
Mid-ocean ridge
B
Abyssal Plain
C
Guyot
D
Rift Valley
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
guyot
B
continental slope
C
trench
D
rift valley
10) These are underwater mountains that are volcanic in origin.
A
rift valleys
B
seamounts
C
trenches
D
abyssal plains
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
guyot
B
volcanic island
C
mid-ocean ridge
D
trench
12) This is the gradually sloping area that extends from the shore out to the continental slope.
A
shoreline
B
continental shelf
C
continetnal slope
D
abyssal plain
13) Where are ocean floor features most likely to occur?
A
at the deepest part of the ocean
B
along tectonic plate boudaries
C
near the coastline
D
along continental shelves
*select an answer for all questions
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