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32 questions
A community of marine organisms that depend on the specialized environment found at rift zones in the ocean floor is...
rift community
rift zones
oceanic basaltic crust
fracture zones
A process by which magma driven by convection currents is turned back by the lithosphere, moves laterally (meaning sideways) and descends, causing lateral (sideways) movement of earth's crust
escarpments
subduction zones
seafloor spreading
rift zones
Linear region of unusually irregular ocean bottom that runs perpendicular to ocean ridges.
transform fault
fracture zones
continental drift
midocean ridge
The movement of continental masses as a result of seafloor spreading.
continental drift
escarpments
rift community
midocean ridge
A nearly continuous line of cliffs with sharp vertical drops
escarpments
theory of plate tectonics
seafloor spreading
bathygraphic features
New earth crust formed when magma erupting from midocean ridges cools.
fracture zones
oceanic basaltic crust
rift community
bathygraphic features
A long mountain range that froms along cracks on the ocean floor
fracture zones
rift zones
midocean ridge
seafloor spreading
Region of the ocean floor where old crust sinks to the earth's core and is recycled.
fracture zones
subduction zones
transform fault
midocean ridge
Theory stating that the movement of continental masses is the result of the movement of the plates on which they rest.
oceanic basaltic crust
theory of plate tectonics
bathygraphic features
rift zones
Fault occurring in regions where parallel, lithospheric plates slide past each other.
continental drift
rift community
escarpments
transform fault
A region where the lithosphere splits, separates, and moves apart as new crust is formed.
rift community
rift zones
seafloor spreading
fracture zones
The physical features of the sea floor
continental drift
midocean ridge
bathygraphic features
transform fault
The transition between the continental shelf and the continental slope is called
midocean ridge
continental rise
continental margin
shelf break
The oceanic crust is primarily comprised of:
granite-type rock
basalt-type rock
quartz-type rock
silicon-type rock
Pangaea, the name given to the supercontinent that existed before the continental drift was coined by:
Sir Francis Bacon
Alfred Wegener
Harry Hess
Edward Suess
Of the four main ocean basins, the largest is the:
Arctic Ocean
Atlantic Ocean
Indian Ocean
Pacific Ocean
Seafloor spreading results in:
vertical movement of the crust
lateral (meaning sideways) movement of the crust
the earth getting bigger
the earth getting smaller
A region where old oceanic crust is being driven under another oceanic plate is called:
a spreading center
a midocean ridge
a seamount
a subduction zone
A __________ is a body of salt water that is smaller than an ocean and is more or less landlocked.
a sea
a gulf
a lake
a bay
A smaller body of water that is mostly cut off from the larger ocean or sea by land formations is a ____________.
a sea
a gulf
a bay
a lake
A region of the ocean floor where the boundaries of lithospheric plates move apart is called a _______________ plate boundary.
divergent
convergent
transform
zone
A region of the ocean floor where the boundaries of the lithospheric plates move toward each other is called a ______________ plate boundary.
divergent
convergent
transform
zone
A flat expanse of an ocean basin is called an ____________ _____________.
oceanic crust
seamount
abyssal plane
midocean ridge
Movement of the lithospheric plates is driven by ______________ currents.
water
convection
electromagnetic
surface
A gentle slope at the base of a steep continental slope is called a continental _________.
drift
rise
slope
shelf
Which is not a type of plate boundary?
Divergent
Convergent
Transform
Zone
True of False:
The divergent plate boundaries move away from each other.
True
False
True of False:
The convergent plate boundaries move away from each other.
True
False
True of False:
The transform plate boundaries slide past each other.
True
False
Which is the first type of convergent plate boundaries? (Type I)
Oceanic and continental
Oceanic and oceanic
Continental and continental
land and sea
Which is the second type of convergent plate boundaries? (Type II)
oceanic and continental
continental and continental
oceanic and oceanic
land and sea
Which is the third type of convergent plate boundaries? (Type III)
oceanic and continental
continental and continental
oceanic and continental
land and sea
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