Chapter 15:
The Moving Continents
Practice Test
1.
Where does separation of oceanic crust occur, and where is new ocean floor created?
a.
the Himalaya
b.
mid-ocean ridges
c.
trenches
d.
convergent boundaries
Hint
2.
What evidence did Wegener suggest that supported the hypothesis of continental drift?
a.
the locations of
Mesosaurus
fossils
b.
the puzzle-like fit of the continents
c.
the locations of
Glossopteris
fossils
d.
All of the above.
Hint
3.
What are mountain chains thousands of kilometers long on the ocean floor known as?
a.
trenches
b.
rift valleys
c.
hot spots
d.
mid-ocean ridges
Hint
4.
Which is the outermost layer of Earth?
a.
core
b.
skin
c.
crust
d.
mantle
Hint
5.
In which layer are convection cells moving, and in turn, driving the movement of lithospheric plates?
a.
continental crust
b.
trench
c.
oceanic crust
d.
mantle
Hint
6.
Which of the following is made of material that is lowest in density?
a.
mantle
b.
core
c.
oceanic crust
d.
continental crust
Hint
7.
How have scientists learned about the deep interior of Earth beneath the crust?
a.
They have analyzed seismic waves that have passed through Earth's interior.
b.
They have drilled deep cores that penetrate through the center of Earth.
c.
They have sampled rock from mines located deep in the mantle.
d.
all of the above
Hint
8.
How do plates move along transform boundaries?
a.
They collide head on into one another.
b.
They move past one another in opposite directions or in the same direction at different rates.
c.
They are forced together to form trenches.
d.
They move away from one another.
Hint
9.
How did the Hawaiian Islands form?
a.
The Pacific plate collided with the Eurasian plate to form mountains.
b.
The Pacific plate was forced under another plate.
c.
The Pacific plate moved over a hot spot.
d.
The Pacific plate was split apart.
Hint
10.
Special deposits of rock can be found where Africa, India, Australia, and South America were once joined. These deposits suggest a colder climate than is currently present at these locations. What do scientists suggest deposited these rocks?
a.
lakes
b.
streams
c.
glaciers
d.
oceans
Hint
11.
Which puttylike layer is located just beneath Earth's plates?
a.
outer core
b.
oceanic crust
c.
lithosphere
d.
asthenosphere
Hint
12.
Which of the following occurs along convergent boundaries?
a.
mountains
b.
volcanoes
c.
trenches
d.
all of the above
Hint
13.
The lithosphere, which makes up Earth's plates, is composed of what two layers?
a.
oceanic crust and lower mantle
b.
asthenosphere and upper mantle
c.
crust and upper mantle
d.
asthenosphere and crust
Hint
14.
What is the origin of movement of lithospheric plates? In other words, what powers plate tectonics?
a.
subduction
b.
conduction
c.
convection
d.
divergence
Hint
15.
What happens to a portion of a plate when it is forced below another plate?
a.
It reverses in magnetic polarity.
b.
It separates to form a rift valley.
c.
It partially melts to form magma.
d.
It forms a divergent boundary.
Hint
