Mountain Building
Practice Test
1.
What type of magma has the lowest silica content and is the least explosive?
a.
rhyolitic magma
b.
granitic magma
c.
andesitic magma
d.
basaltic magma
2.
Which type of fault results in horizontal shortening?
a.
shear
b.
normal
c.
strike-slip
d.
reverse
3.
What is the probability of earthquake occurrence based on?
a.
magnitude of P-waves
b.
reoccurrence rates of earthquakes in an area and the rate of strain buildup
c.
strain buildup only
d.
location of foci
4.
According to the seismogram shown in the figure, which wave is the fastest?
a.
Tidal wave
b.
Surface wave
c.
S-wave
d.
P-wave
5.
What type of boundary created the Alaskan mountains shown in the figure?
a.
continental-continental convergence
b.
oceanic-oceanic convergence
c.
oceanic-continental convergence
d.
oceanic-continental divergence
6.
How many times larger is a magnitude 3 than a magnitude 1 earthquake on the Richter scale?
a.
100 000 times
b.
100 times
c.
10 times
d.
1/10 times
7.
The tallest mountains on Earth are formed by __________.
a.
oceanic-oceanic convergence
b.
oceanic-continental convergence
c.
hot spots
d.
continental-continental convergence
8.
What type of igneous pluton is tabular and parallel to surrounding rock layers?
a.
a sill
b.
a dike
c.
a batholith
d.
a stock
9.
How are the convection currents set in motion?
a.
the heat from radioactive decay
b.
slab push
c.
slab push and ridge pull
d.
spreading mid-ocean ridges
10.
According to the map, at which latitude and longitude is most likely to experience an earthquake?
Click here for figure
a.
0
N, 30
W
b.
30
S, 60
W
c.
0
N, 180
W
d.
60
N, 120
E
11.
Why are three circles needed to determine the epicenter, as shown in the figure?
a.
If only two circles are used, there are two possible locations.
b.
Scientists always take measurements in threes.
c.
The epicenter can move.
d.
The more measurements, the better.
12.
What does the straight part of a stress-strain graph portray?
a.
failure
b.
elastic deformation
c.
ductile deformation
d.
shearing direction
13.
__________ is the internal resistance to flow of a liquid.
a.
Viscosity
b.
Gravity
c.
Specific gravity
d.
Weight
14.
The record produced by a seismometer is called a __________.
a.
seismogram
b.
plot
c.
seismochart
d.
seismograph
15.
What is thought to be the driving mechanism of plate movement?
a.
convection currents in the mantle
b.
conduction of heat in the mantle
c.
continental drifting
d.
volcanoes
16.
A tabular pluton that cuts across preexisting rock is called a __________.
a.
laccolith
b.
sill
c.
dike
d.
stock
