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Section Quiz
Section: Deforming the Earth’s Crust
Match the correct definition with the correct term. Write the letter in the space
provided.
______ 1. stress at a divergent plate boundary
______ 2. stress at a convergent plate boundary
a. uplift
b. subsidence
c. tension
______ 3. upward arching rock layer
d. compression
______ 4. downward arching rock layer
______ 5. hanging wall moves down relative
to footwall
______ 6. hanging wall moves up relative
to footwall
e. normal fault
f. anticline
g. syncline
h. reverse fault
______ 7. sinking of rock layers
______ 8. rising of rock layers
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Holt Science and Technology
50
Plate Tectonics
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TEACHER RESOURCE
SECTION: DEFORMING THE EARTH’S
CRUST
1.
2.
3.
4.
C
D
F
G
5.
6.
7.
8.
14. The asthenosphere is a layer made of
E
H
B
A
15.
Chapter Test A
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
B
D
B
D
A
B
A
C
A
C
D
B
A
D
C
A
B
D
F
C
B
D
A
16.
17.
18.
Chapter Test B
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
asthenosphere
mesosphere
outer core
continental drift
uplift
sea-floor spreading
B
A
A
D
C
D
Folded mountain ranges form when
two tectonic plates with continental
crust collide. The crust is forced upward
at the point of collision, which forms
mountains over a long period of time.
19.
solid rock that flows very slowly. The
tectonic plates float, or move very
slowly on top of the asthenosphere.
When rocks are pulled apart by tension,
hanging walls tend to slip below the
footwall. When rocks are pushed
together by compression, hanging
walls tend to push above the footwall.
Answers will vary. Sample answer:
Molten rock at mid-ocean ridges has
magnetized minerals that align with
Earth’s magnetic field. When the
Earth’s magnetic field reverses, the
magnetized minerals align in the opposite direction. The record of magnetic
reversals is carried away from each
side of the spreading center of a midocean ridge, showing that the molten
rock is creating new lithosphere.
Answers will vary. Sample answer:
When tectonic plates slide past each
other, the movement may cause earthquakes, which might injure people or
damage property in a community.
Answers will vary. Sample answer:
Continental crust: Continental crust is
thicker than ocean crust, but much
less dense and therefore easier to drill
through because it contains less dense
minerals. Oceanic crust: Although it is
denser than continental crust, oceanic
crust is much thinner than continental
crust, and therefore would take less
time to drill through.
a. Pangaea; b. Gondwana; c. Laurasia;
d. North America; e. South America
Chapter Test C
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
B
C
D
A
A
B
B
B
B
B
C
D
A
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Holt Science and Technology
101
Plate Tectonics