chapter 20 review mountain building. which section of the diagram best represents the most common...
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Chapter 20 Review
Mountain Building
A B C D
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Which section of the diagram best represents the most common elevation range of areas that are above sea level?
1. A
2. B
3. C
4. D
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Which factor would be most useful in predicting the amount of mantle a
certain volume of crust will displace?
1. temperature of the mantle
2. density of the crust
3. chemical composition of the mantle
4. temperature of the crust
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Which lists the types of convergent boundaries in order, from those that produce the smallest mountain belts to
those that produce the largest mountain belts?
1. oceanic-oceanic; oceanic-continental; continental-continental
2. oceanic-continental; oceanic-oceanic; continental-continental
3. continental-continental; oceanic-continental; oceanic-oceanic
4. oceanic-oceanic; continental-continental; oceanic-continental
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At time interval A on the timeline, ancestral North America separated from
Ancestral Africa along two divergent boundaries. This was the beginning of
which process?
1. formation of the Appalachian Mountains
2. formation of the Himalayas
3. formation of the Lesser Antilles
4. formation of the Adirondack Mountains
incr
easi
ng te
mper
ature
dec
reas
ing d
ensi
ty
dec
reas
ing a
ge
incr
easi
ng den
sity
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Which label best summarizes the trend represented by the arrow in the diagram?
1. increasing temperature
2. decreasing density
3. decreasing age
4. increasing density
by
conve
rgen
ce
by
faul
ting
by
volc
anoes
by
ocea
nic p
late
mo...
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The Lesser Antilles and the Appalachian Mountains are similar in
that they were both formed .
1. by convergence
2. by faulting
3. by volcanoes
4. by oceanic plate movement
oce
anic
cru
st, c
ontin...
man
tle, o
cean
ic c
rust
...
contin
enta
l cru
st, o
c...
contin
enta
l cru
st, m
an...
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Which lists Earth materials in order of increasing density?
1. oceanic crust, continental crust, mantle
2. mantle, oceanic crust, continental crust
3. continental crust, oceanic crust, mantle
4. continental crust, mantle, oceanic crust
841
m
302
4 m
386
5 m
470
6 m
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What is the difference between the average depth of the ocean and the average elevation of exposed land,
as shown on the diagram?
1. 841 m
2. 3024 m
3. 3865 m
4. 4706 m
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Subduction zones form at
1. only oceanic-oceanic boundaries
2. only oceanic-continental boundaries
3. both oceanic-oceanic boundaries and oceanic-continental boundaries
4. neither oceanic-oceanic boundaries or oceanic continental boundaries
a c
ollis
ion b
etwee
n t..
the
water
line
of a b
o..
scr
apin
g food
off
a pl
ate
stre
tchin
g a c
rack
ed, .
..
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A good model for isostasy is
1. a collision between two cars
2. the water line of a boat when someone boards or leaves it
3. scraping food off a plate
4. stretching a cracked, old rubber band
rise
s
sin
ks
split
s to
form
a ri
ft
conve
rges
at a
boun...
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In the process of isostatic rebound, mountains are eroded over hundreds of millions of
years, while the crust below them
1. rises
2. sinks
3. splits to form a rift
4. converges at a boundary
contin
enta
l drif
t
oro
geny
ero
sion
isost
atic
rebou
nd
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After millions of years of erosion, the Appalachian Mountains still exist
because of
1. continental drift
2. orogeny
3. erosion
4. isostatic rebound
form
when
a la
rge
re...
hav
e ro
cks
that
are
n..
are
the
resu
lt of e
ros.
..
all
of th
e ab
ove
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Uplifted mountains
1. form when a large region of Earth’s crust rises up as a unit
2. have rocks that are not very deformed
3. are the result of erosional forces
4. all of the above
form
when
two c
onti.
..
form
above
a s
ubduc.
..
form
when
a la
rge
pi...
all
of th
e ab
ove
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Fault-block mountains
1. form when two continental plates collide
2. form above a subduction zone
3. form when a large pieces of crust are dropped between large faults
4. all of the above
hot s
pot v
olca
nism
div
erge
nce o
n the
o...
contin
enta
l-cont
inen
...
oce
anic
-oce
anic
co...
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The Himalayas formed as the result of
1. hot spot volcanism
2. divergence on the ocean floor
3. continental-continental convergence
4. oceanic-oceanic convergence
div
erge
nt bou
ndarie
s
Euro
pe
Pan
gaea
hot s
pots
0% 0%0%0%
At this type of boundary, a warming lithosphere bulges upward and is higher
than the surrounding oceanic crust.
1. divergent boundaries
2. Europe
3. Pangaea
4. hot spots
div
erge
nt bou
ndarie
s
Euro
pe
Pan
gaea
hot s
pots
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The volcanic peaks of Hawaii formed as a result of these.
1. divergent boundaries
2. Europe
3. Pangaea
4. hot spots
div
erge
nt bou
ndarie
s
Euro
pe
Pan
gaea
hot s
pots
0% 0%0%0%
Ancestral North America and ancestral Africa collided to form this
supercontinent.
1. divergent boundaries
2. Europe
3. Pangaea
4. hot spots
div
erge
nt bou
ndarie
s
Euro
pe
Pan
gaea
hot s
pots
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Some of the rocks and geologic structures in this region are like those
in the Appalachian Mountains.
1. divergent boundaries
2. Europe
3. Pangaea
4. hot spots
faul
t-blo
ck m
ounta
ins
isost
atic
rebou
nd
oro
geny
pill
ow b
asal
ts
isost
asy
uplif
ted m
ounta
ins
0% 0% 0%0%0%0%
Mountains that form when large pieces of crust are tilted, uplifted, or dropped
between large faults
1. fault-block mountains
2. isostatic rebound
3. orogeny
4. pillow basalts
5. isostasy
6. uplifted mountains
faul
t-blo
ck m
ounta
ins
isost
atic
rebou
nd
oro
geny
pill
ow b
asal
ts
isost
asy
uplif
ted m
ounta
ins
0% 0% 0%0%0%0%
Billowy rocks that form when lava erupts onto the seafloor
1. fault-block mountains
2. isostatic rebound
3. orogeny
4. pillow basalts
5. isostasy
6. uplifted mountains
faul
t-blo
ck m
ounta
ins
isost
atic
rebou
nd
oro
geny
pill
ow b
asal
ts
isost
asy
uplif
ted m
ounta
ins
0% 0% 0%0%0%0%
Cycle of processes that form mountain ranges
1. fault-block mountains
2. isostatic rebound
3. orogeny
4. pillow basalts
5. isostasy
6. uplifted mountains
faul
t-blo
ck m
ounta
ins
isost
atic
rebou
nd
oro
geny
pill
ow b
asal
ts
isost
asy
uplif
ted m
ounta
ins
0% 0% 0%0%0%0%
Slow process of the crust’s rising after overlying material is removed
1. fault-block mountains
2. isostatic rebound
3. orogeny
4. pillow basalts
5. isostasy
6. uplifted mountains
faul
t-blo
ck m
ounta
ins
isost
atic
rebou
nd
oro
geny
pill
ow b
asal
ts
isost
asy
uplif
ted m
ounta
ins
0% 0% 0%0%0%0%
Condition of equilibrium whereby Earth’s crust is balanced by the upward force of buoyancy and the
downward force of gravity
1. fault-block mountains
2. isostatic rebound
3. orogeny
4. pillow basalts
5. isostasy
6. uplifted mountains
faul
t-blo
ck m
ounta
ins
isost
atic
rebou
nd
oro
geny
pill
ow b
asal
ts
isost
asy
uplif
ted m
ounta
ins
0% 0% 0%0%0%0%
Mountains that form when large regions of Earth experience upward movement
1. fault-block mountains
2. isostatic rebound
3. orogeny
4. pillow basalts
5. isostasy
6. uplifted mountains
Tru
e
Fal
se
0%0%
There are three dominant ranges of elevations on Earth.
1. True
2. False
Tru
e
Fal
se
0%0%
Isostasy is an equilibrium between gravitational force and
buoyant force.
1. True
2. False
Tru
e
Fal
se
0%0%
Granite batholiths are associated with continental-continental plate
boundaries.
1. True
2. False
Tru
e
Fal
se
0%0%
The Himalayas are older than the Appalachian Mountains.
1. True
2. False
Tru
e
Fal
se
0%0%
Ocean ridges form at convergent plate boundaries.
1. True
2. False
Tru
e
Fal
se
0%0%
The Adirondack Mountains are classified as uplifted mountains.
1. True
2. False
Tru
e
Fal
se
0%0%
Orogeny is a term that refers to all processes that form Earth’s
crust.
1. True
2. False
Tru
e
Fal
se
0%0%
The shaded area of this graph correctly shows the percentage of Earth’s surface that is below sea
level.
1. True
2. False
Tru
e
Fal
se
0%0%
The mantle has a greater density than continental crust.
1. True
2. False
Tru
e
Fal
se
0%0%
The Grand Tetons are classified as fault block mountains.
1. True
2. False
Tru
e
Fal
se
0%0%
Most of Earth's surface is above sea level.
1. True
2. False
Tru
e
Fal
se
0%0%
Continental crust, because it is denser than oceanic crust, rises higher above Earth’s surface.
1. True
2. False
Tru
e
Fal
se
0%0%
The volcanoes of an island arc complex form as a result of a(n)
oceanic-continental convergence.
1. True
2. False
Tru
e
Fal
se
0%0%
Uplifted mountains are regions of broad uplift that seem to be related
to rising convection cells in the mantle.
1. True
2. False
Tru
e
Fal
se
0%0%
About 70 percent of Earth’s surface is below sea level.
1. True
2. False
Tru
e
Fal
se
0%0%
The seafloor displaces more of the mantle than the same thickness of
the continental crust.
1. True
2. False
Tru
e
Fal
se
0%0%
Isostasy between Earth’s mantle and crust exists when the mass of crust is
rising as a result of buoyancy and gravity.
1. True
2. False
Tru
e
Fal
se
0%0%
Mt. Everest is the tallest mountain on Earth, so it
probably has the deepest root.
1. True
2. False
Tru
e
Fal
se
0%0%
When mountains erode, their roots increase in size.
1. True
2. False
Tru
e
Fal
se
0%0%
The Appalachian Mountains are an example of divergent-
boundary mountains.
1. True
2. False
Tru
e
Fal
se
0%0%
The Adirondack Mountains, which are made of rocks that show little
deformation, are uplifted mountains.
1. True
2. False
Tru
e
Fal
se
0%0%
Oceanic crust is composed mainly of basalt, and continental crust is composed mainly of granite.
1. True
2. False
Tru
e
Fal
se
0%0%
Individual volcanic mountains on the ocean floor are called
plates.
1. True
2. False
Tru
e
Fal
se
0%0%
The tallest orogenic belts are found at continental-continental convergent
boundaries.
1. True
2. False
Tru
e
Fal
se
0%0%
Many mountain ranges are formed as the result of tectonic
interactions.
1. True
2. False
Tru
e
Fal
se
0%0%
Broad, uplifted plateaus, such as the Colorado Plateau, are regional divergent-boundary features of
Earth’s crust.
1. True
2. False