GEO 101 - Exam III QUESTIONS AND
ANSWERS
1. _____________________ are layered structures produced by the activity of
microorganisms, especially cyanobacteria.
A. Vertebrates
B. Methanogens
C. Stromatolites
D. Green algae - ANSWER-stromatolites
2. ___________________________ is delineated by earthquakes along subducted
oceanic lithosphere.
A. Wegener belt
B. Seismic gap
C. Wadati-Benioff zone
D. Transform fault - ANSWER-Wadati-Benioff zone
3. A body of rock affected by compressive stress will likely
undergo____________________.
A. shortening
B. stretching
C. shear strain - ANSWER-shortening
4. A body of rock affected by tensile stress will likely undergo____________________.
A. shortening
B. stretching
C. shear strain - ANSWER-streching
5. A body of rock to which a sudden, rapid stress has been applied is more likely to exhibit
____________________ than is a body of rock subjected to a gradually applied stress.
A. brittle deformation
B. ductile deformation - ANSWER-brittle deformation
6. A body of rock under high pressure is more likely to exhibit ____________________
than is a body of rock at low pressure.
A. brittle deformation
B. ductile deformation - ANSWER-ductile deformation
7. A fault slip due to an earthquake stops by friction.
A. True
, B. False - ANSWER-true
8. A fold shaped like a right-side up bowl is a(n)____________________.
A. anticline
B. basin
C. dome
D. syncline - ANSWER-basin
9. A fold shaped like an elongate arch is a(n) ____________________.
A. anticline
B. basin
C. dome
D. syncline - ANSWER-anticline
10.A fold shaped like an elongate trough is a(n)____________________.
A. anticline
B. basin
C. dome
D. syncline - ANSWER-syncline
11.A fold shaped like an upside-down bowl is a(n)____________________.
A. anticline
B. basin
C. dome
D. syncline - ANSWER-dome
12.A hot body of rock is more likely to exhibit ____________________ than is a cold body
of rock.
A. brittle deformation
B. ductile deformation - ANSWER-ductile deformation
13.A shield ___________________.
a. is the same thing as a cratonic platform.
b. has layers of undeformed sedimentary rock that are extremely old.
c. has Precambrian metamorphic and igneous rocks at its surface.
d. is not part of a craton. - ANSWER-has Precambrian metamorphic and igneous
rocks at its surface.
14.A surface along which rock on opposed sides is offset by earthquake-induced slip is
called a ____________.
a. joint
b. fold
c. fault
d. wall - ANSWER-fault
, 15.A tsunami is ______________________ .
A. an earthquake-generated sea wave that can sometimes destroy coastal cities
thousands of kilometers from its source
B. a sloshing of water back and forth within a lake or bay
C. the amount of change in elevation of local sea level caused by a surging wave
D. the tendency of wet, clay-rich soils to behave like a liquid during an earthquake -
ANSWER-an earthquake-generated sea wave that can sometimes destroy coastal
cities thousands of kilometers from its source
16.A tsunami is ____________.
a. an earthquake-generated sea wave that can sometimes destroy coastal cities
thousands of kilometers from its source
b. the amount of change in elevation of local sea level caused by a surging wave
c. the tendency of wet, clay-rich soils to behave like a liquid during an earthquake
d. a sloshing of water back and forth within a lake or bay - ANSWER-an
earthquake-generated sea wave that can sometimes destroy coastal cities
thousands of kilometers from its source
17.Aftershocks following a major earthquake____________________.
A. may continue for days after the mainshock
B. are mostly much smaller than the mainshock
C. may occur on a different fault from the mainshock
D. all of the above - ANSWER-all of the above
18.Alabama is an earthquake-free place.
A. True
B. False - ANSWER-false
19.An earthquake with magnitude 8.0 is greater in ground motion than an earthquake with
magnitude 4.0____________________.
A. four times
B. four hundred times
C. one thousand times
D. ten thousand times - ANSWER-ten thousand times
20.An episode of mountain building is termed a(n) ____________________.
A. orogeny
ANSWERS
1. _____________________ are layered structures produced by the activity of
microorganisms, especially cyanobacteria.
A. Vertebrates
B. Methanogens
C. Stromatolites
D. Green algae - ANSWER-stromatolites
2. ___________________________ is delineated by earthquakes along subducted
oceanic lithosphere.
A. Wegener belt
B. Seismic gap
C. Wadati-Benioff zone
D. Transform fault - ANSWER-Wadati-Benioff zone
3. A body of rock affected by compressive stress will likely
undergo____________________.
A. shortening
B. stretching
C. shear strain - ANSWER-shortening
4. A body of rock affected by tensile stress will likely undergo____________________.
A. shortening
B. stretching
C. shear strain - ANSWER-streching
5. A body of rock to which a sudden, rapid stress has been applied is more likely to exhibit
____________________ than is a body of rock subjected to a gradually applied stress.
A. brittle deformation
B. ductile deformation - ANSWER-brittle deformation
6. A body of rock under high pressure is more likely to exhibit ____________________
than is a body of rock at low pressure.
A. brittle deformation
B. ductile deformation - ANSWER-ductile deformation
7. A fault slip due to an earthquake stops by friction.
A. True
, B. False - ANSWER-true
8. A fold shaped like a right-side up bowl is a(n)____________________.
A. anticline
B. basin
C. dome
D. syncline - ANSWER-basin
9. A fold shaped like an elongate arch is a(n) ____________________.
A. anticline
B. basin
C. dome
D. syncline - ANSWER-anticline
10.A fold shaped like an elongate trough is a(n)____________________.
A. anticline
B. basin
C. dome
D. syncline - ANSWER-syncline
11.A fold shaped like an upside-down bowl is a(n)____________________.
A. anticline
B. basin
C. dome
D. syncline - ANSWER-dome
12.A hot body of rock is more likely to exhibit ____________________ than is a cold body
of rock.
A. brittle deformation
B. ductile deformation - ANSWER-ductile deformation
13.A shield ___________________.
a. is the same thing as a cratonic platform.
b. has layers of undeformed sedimentary rock that are extremely old.
c. has Precambrian metamorphic and igneous rocks at its surface.
d. is not part of a craton. - ANSWER-has Precambrian metamorphic and igneous
rocks at its surface.
14.A surface along which rock on opposed sides is offset by earthquake-induced slip is
called a ____________.
a. joint
b. fold
c. fault
d. wall - ANSWER-fault
, 15.A tsunami is ______________________ .
A. an earthquake-generated sea wave that can sometimes destroy coastal cities
thousands of kilometers from its source
B. a sloshing of water back and forth within a lake or bay
C. the amount of change in elevation of local sea level caused by a surging wave
D. the tendency of wet, clay-rich soils to behave like a liquid during an earthquake -
ANSWER-an earthquake-generated sea wave that can sometimes destroy coastal
cities thousands of kilometers from its source
16.A tsunami is ____________.
a. an earthquake-generated sea wave that can sometimes destroy coastal cities
thousands of kilometers from its source
b. the amount of change in elevation of local sea level caused by a surging wave
c. the tendency of wet, clay-rich soils to behave like a liquid during an earthquake
d. a sloshing of water back and forth within a lake or bay - ANSWER-an
earthquake-generated sea wave that can sometimes destroy coastal cities
thousands of kilometers from its source
17.Aftershocks following a major earthquake____________________.
A. may continue for days after the mainshock
B. are mostly much smaller than the mainshock
C. may occur on a different fault from the mainshock
D. all of the above - ANSWER-all of the above
18.Alabama is an earthquake-free place.
A. True
B. False - ANSWER-false
19.An earthquake with magnitude 8.0 is greater in ground motion than an earthquake with
magnitude 4.0____________________.
A. four times
B. four hundred times
C. one thousand times
D. ten thousand times - ANSWER-ten thousand times
20.An episode of mountain building is termed a(n) ____________________.
A. orogeny
