Download Plate Tectonics Review

Plate Tectonics Review
1. The theory of plate tectonics helps explain the
locations of
a. earthquakes and the lithosphere
b. volcanoes and the mantle
c. the mantle and the lithosphere
d. earthquakes and volcanoes
2. At which boundary do lithospheric plates spread
away from each other?
a. divergent boundaries
b. convergent boundaries
c. transform boundaries
3. The diagram below shows a portion of the
Earth’s crust.
6. Sea-floor spreading takes place where?
a. divergent boundaries
b. convergent boundaries
c. transform boundaries
d. all of the above
7. Which of the following is an important reason
why Wegener’s continental drift hypothesis was
not widely accepted?
a. Not all of the continents appear as
though they were once joined.
b. Wegener could not present any fossil
evidence.
c. Wegener could not explain how the
continents had moved.
8. What rock makes up most of the ocean floor?
a. granite
b. diorite
c. basalt
d. sandstone
The movements indicated by the arrows
represent a ___________ boundary.
a. divergent
b. convergent
c. transform
9. The map below shows the present-day locations
of South America and Africa. Remains of
Mesosaurus, an extinct freshwater reptile, have
been found in similarly aged bedrock formed
from lake sediments at locations X and Y.
4. What was the name of the giant landmass that all
the continents formed into 250 million years
ago?
a. Pangaea
b. Persopolis
c. Gondwana
5. The diagram below shows the collision of an
oceanic plate and a continental plate.
The movement indicated by the arrows
represents a __________ boundary.
a. divergent
b. convergent
c. transform
Which statement represents the most logical
conclusion to draw from this evidence?
a. Mesosaurus migrated across the ocean
from location X to location Y.
b. The continents of South America and
Africa were joined when Mesosaurus
lived.
c. The present climates at locations X and
Y are similar.
10. A chain of volcanoes commonly forms when
a. a continental plate subducts
b. an oceanic plate subducts
c. two continents collide
d. two plates slide past one another
11. If two plates, one oceanic and one continental,
share a convergent boundary, a likely result is
that
a. a divergent boundary will form
b. the continent will subduct under the
oceanic crust
c. the oceanic crust will subduct under the
continent
d. earthquake activity will stop in the
region
12. The diagrams below are geologic cross-sections
of the upper mantle and crust at four different
Earth locations, A, B, C and D. Movement of the
crustal sections (plates) is indicated by arrows,
and the locations of frequent earthquakes are
indicated by *. Diagrams are not drawn to scale.
13. What causes the lithospheric plates to move?
a. Continental drift
b. Spinning of the outer core
c. Convection cells in the mantle
d. All of the above
14. Where did magnetic reversal in basalt rock first
hint of plate tectonics?
a. Mid-ocean ridges
b. Deep-sea trenches
c. Volcanic island arcs
d. Continental mountain chains
15. Deep-sea trenches occur where?
a. divergent boundaries
b. convergent boundaries
c. transform boundaries
d. all of the above
16. What boundary forms volcanoes along the coast
of a continent, as in the Andes Mountain chain?
a. Ocean-ocean subduction
b. Ocean-continent subduction
c. Continent-continent collision
Which diagram represents plate movement
associated with transform faults such as those
causing California earthquakes?
a. A
b. B
c. C
d. D