VIEW QUIZ 1
Each question is worth two points.
The order of the questions approximates the order of the text chapters to facilitate looking up the answers.
Remember some of the questions are also found on your Self-Tests of the chapters.
1.
The U.S. Geologic Survey recommended against the building of the Alaska pipeline. Clearly, this is a sign that
A)
the agency opposes all such pipelines.
B)
the government always bases its actions on environmental impact reports.
C)
governmental agencies can be counted on to protect the environment.
D)
its geologists were concerned about the environment.
2.
Water evaporating from the seas and falling from clouds as rain, and masses of heated rock moving upwards towards the Earth's surface are examples of the Earth's external and internal heat engines. The movement in both the Earth's engines of heated material upward and cooled material downward, is an example of
A)
gravity
B)
solar power
C)
convection currents
D)
radioactive heat
3.
Oceanic and continental crust differ in
A)
density.
B)
the way they are formed.
C)
composition.
D)
all of the above
4.
The principle of continents being in buoyant equilibrium is called
A)
subsidence.
B)
connection.
C)
rebound.
D)
isostasy.
5.
A positive gravity anomaly indicates that
A)
tectonic forces are holding a region up out of isotatic equilibrium
B)
the land mass is sinking
C)
local mass deficiencies exist in the crust
D)
all of the above
6.
Terrigenous sediments
A)
are made up of skeletons of microscopic organisms.
B)
are derived from land and make up most of the sediments of the continental rise.
C)
are found exclusively on island arcs.
D)
are made up of fine-grained clays that accumulate on the sea floor.
7.
When the earth was forming a process called degassing took place. Without this ancient process of volcanization
A)
plate tectonics would not have developed.
B)
Earth might never have been covered with water.
C)
no mountains would have risen.
D)
the continents would not have formed.
8.
The southern supercontinent is called
A)
Gondwanaland.
B)
Pangaea.
C)
Laurasia.
D)
Glossopteris.
9.
According to the theory of sea floor spreading, new rock is added to the plates at
A)
subduction zones.
B)
converging boundaries.
C)
spreading centers (i.e. Midoceanic Ridges).
D)
drift boundaries.
10.
Which provides the most conclusive evidence for plate movement?
A)
magnetic anomalies in the oceanic crust
B)
fossils in marine deposits
C)
rock types on the Earth's crust
D)
paleoclimatic deposits
11.
Place these stages of mountain belt development in order:
A)
uplift and block faulting, orogeny, accumulation, erosion to a craton
B)
erosion to a craton, accumulation, uplift and block faulting, orogeny
C)
orogeny, accumulation, uplift and block faulting, erosion to a craton
D)
orogeny, erosion to a craton, uplift and block faulting, accumulation
12.
Paleomagnetic studies would be used to confirm a(n)
A)
known tectono-stratigraphic terrane as an accreted terrain.
B)
accreted terrain as a suspect terrain.
C)
exotic terrain as a suspect terrain.
D)
suspect terrain as an accreted terrain.
13.
A syncline is
A)
an upward-arched fold.
B)
an overturned fold
C)
a downward-arched fold
D)
horizontal beds
14.
Fractures in bedrock along which movement has taken place are called
A)
joints.
B)
faults.
C)
cracks.
D)
crevasses.
15.
These waves are compressional and travel through liquids, solids and gases
A)
surface waves
B)
P
C)
S
D)
body
16.
The Richter Scale is used to describe an earthquake's
A)
location.
B)
intensity.
C)
depth of focus.
D)
magnitude
17.
"Within a sequence of undisturbed sedimentary rocks, the layers get younger going from bottom to top" is the principle of
A)
original horizontality
B)
superposition
C)
cross-cutting
D)
none of the above
18.
Which division of geologic time was the longest?
A)
Precambrian
B)
Paleozoic
C)
Mesozoic
D)
Cenozoic
19.
The oldest abundant fossils of complex multicellular life date from
A)
Precambrian
B)
Paleozoic
C)
Mesozoic
D)
Cenozoic
20.
Atoms containing different numbers of neutrons but the same numbers of protons are called
A)
compounds
B)
ions
C)
elements
D)
isotopes
21.
Which of the following is not true of a mineral?
A)
They are crystalline.
B)
They are organic.
C)
They are naturally occurring.
D)
They have a definite chemical composition.
22.
When atoms are bonded together by sharing electrons rather than by electrical attraction, the bonding is called
A)
covalent.
B)
ionic.
C)
metallic.
D)
crystalline.
23.
A magma having a silica content of 50% is more mafic than one having a silica content of 70%.
A)
true
B)
false
24.
In spite of the radioactive content of the continental crust, heat flow averages out to be about the same between the continental and oceanic crusts.
A)
true
B)
false
25.
One of the three major categories of rock in the rock cycle is
A)
granite
B)
sedimentary
C)
ultramafic
D)
basalt