Ocean 115 - Introduction to Oceanography » Spring 2023 » Week 3 Plate Tectonics Post-reading Quiz

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Question #1
Which option lists the three forces that cause the plates to move?
A.   Conduction, Convection and Radiative
B.   Convergence, Divergence and Transformative
C.   Centripetal, Centrifugal and Convection currents
D.   Convection in the mantle, slab pull and ridge push
Question #2
Which concept describes early Earth as separated into layers by gravity, with each deeper layer denser than the layer above?
A.   Density stratification
B.   Tectonic Theory
C.   Seismology
D.   Continental Drift
Question #3
This animation illustrates how the weak, plastic _______ flows allowing the rigid ______ crust to "float" atop pushed apart by convection currents in the mantle.
A.   asthenosphere.... lithospheric
B.   magma.... oceanic
C.   Convection currents... mid-ocean ridge
D.   lithosphere... asthenospheric
Question #4
As mountains erode, how will isostatic forces cause Earth's crust beneath the mountain to behave?
A.   Rise
B.   Sink
C.   Stay the same
D.   Spread out
Question #5
Oceanographers and seismologists further explored the theory of continental drift during the early- to mid-twentieth century by correlating patterns of earthquakes and ____.
A.   Convection currents
B.   Tectonic plates
C.   Volcanoes
D.   Isostatic equilibrium
Question #6
Where is the youngest seafloor found?
A.   At mid-ocean ridges
B.   This is a trick questions. All the seafloor is the same age.
C.   Not enough information to tell
D.   At continental marrgins where the seafllor abuts the continent
Question #7
The compressional movement of plate boundaries, such as observed at the Juan De Fuca plate, is representative of which type of boundary?
A.   Convergent
B.   Divergent
C.   Spreading center
D.   Transform
Question #8
At what type of Plate Boundary do earthquakes occur at multiple depths: shallow, intermediate and sometimes also deep?
A.   Transform
B.   Divergent
C.   Subduction zones
D.   Mid-ocean ridges
Question #9
Which landscape is an example of a divergent boundary?
A.   Mid-Atlantic Ridge
B.   Aleutian Islands
C.   Cascade Mountains
D.   San Andreas
Question #10
The lateral movement at transform boundaries causes what type of force?
A.   Torque
B.     
C.   Extension
D.   Shear
E.   Compression

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