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MS 20 Chapter 3 Plate Tectonics Quiz
1.
Which movement of Earth’s crust dictates that the oceanic crust must be made of
a higher density material than continental crust?
a. subduction b.isostatic adjustment c. continental drift e. sea floor
spreading
2.
Which of the following is evidence supports plate tectonic theory?
a. the fit of the continents b. paleoclimate
c. earthquakes d. seafloor
paleomagnetism e. a, b, c, and d
3.
The approximate latitude at which rocks containing magnetite particles formed
can be determined by measuring the
a. intensity of the rocks' magnetic field. b. magnetic dip of the particles.
c. the apparent polar wander of the particles. d. the magnetic polarity of the
particles. e. none of the above.
4.
Frederick Vine and Drummond Matthews observed that the sequence of polarity
changes from one side of an oceanic ridge was _________ to that of the other
side of the ridge.
a. in opposition b. identical c. opposite d. similar e. none of the above
5.
As one moves away from the axis of an oceanic ridge or rise, the
a. age of the ocean floor decreases. b. lithosphere thickens. c. water depth
decreases. d. rate of heat flow increases. e. all of the above.
6.
True or false? The pattern of P wave arrivals at the Earth's surface are a major
line of evidence that the outer core is liquid?
a. True b. False
7.
The area of fastest spreading is the
a. East Pacific Rise. b. the mid-ocean ridge east of Africa. c. North
Mid-Atlantic Ridge. d. South Mid-Atlantic Ridge. e. none of the above since
spreading rates are equal everywhere.
8.
The area between two offset segments of mid-ocean ridge is called what?
a. transform boundary b. convergent boundary c. constructive boundary
d. fracture zone e. none of the above
9.
True or false? 80% of the earthquakes in the trench regions are shallower than
earthquakes in the mid-ocean ridge region.
a. True b. False
10.
Overall, the Atlantic Ocean basin is ________ and the Pacific Ocean basin is
________.
a. growing, shrinking b. shrinking, growing c. growing, growing
d. shrinking, shrinking