Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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1.
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All of the following are evidence supporting the theory of
plate tectonics EXCEPT for ________.
a. | changes in the Moon's orbit due to shifting
plates | b. | hot spots | c. | ocean floor
drilling | d. | paleomagnetism |
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2.
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Which one of the following is an important fundamental
assumption underlying the plate tectonic theory?
a. | Earth's ocean basins are very old and stable
features. | b. | Earth's diameter has been essentially constant over
time. | c. | Radioactive decay slows down at the extreme pressures of the
inner core. | d. | Earth's magnetic field
originates in the outer core. |
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3.
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A transform plate boundary is characterized by
________.
a. | stratovolcanoes on the edge of a plate and shield volcanoes on
the adjacent plate | b. | a deep, vertical fault
along which two plates slide past one another in opposite directions | c. | two converging oceanic plates meeting head-on and piling up into a mid-ocean
ridge | d. | a divergent boundary where the continental plate changes to an
oceanic plate |
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4.
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Seamounts ________.
a. | form only in the Pacific Ocean basin | b. | are a special type of oceanic trench | c. | are volcanoes that form on the ocean floor | d. | are submarine canyons found near Australia |
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5.
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Where in the oceans are biological communities thriving
without sunlight?
a. | around fissure vents for flood basalts | c. | in shallow water, coral reefs | b. | in muds of deep-ocean
trenches | d. | around seafloor, hot spring vents |
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6.
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The Black Hills of South Dakota are a good example of a(n)
________.
a. | basin | c. | syncline | b. | anticline | d. | dome |
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7.
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A(n) ________ fault has little or no vertical movements of
the two blocks.
a. | strike slip | c. | dip
slip | b. | stick slip | d. | oblique
slip |
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8.
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A transform fault is ________.
a. | the rift bounding faults on a mid-ocean
ridge | b. | a dip-slip fault connecting an anticline with a
syncline | c. | a strike-slip fault that forms the boundary between tectonic
plates | d. | a reverse fault that steepens into a thrust
fault |
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9.
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A horst is ________.
a. | a downdropped block bounded by two reverse
faults | b. | an uplifted block bounded by two reverse
faults | c. | a downdropped block bounded by two normal
faults | d. | an uplifted block bounded by two normal
faults |
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10.
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The ________ are a geologically old mountain range folded
and deformed during the Paleozoic.
a. | Alps in Europe | b. | Rockies in the western United States | c. | Appalachians in the eastern United States | d. | Cascades in the northwestern United States |
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One Word Completion / One Word Answer
Complete or answer each
statement by typing only one word. Answer numbers as text..
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11.
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A(n) ________ marks the site where old, oceanic lithosphere
begins its descent into a subduction zone.
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12.
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A low lying, coral limestone island with a central lagoon is
called a(n) ________.
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13.
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A(n) ________ fault develops in response to horizontal,
tensional stresses in crustal rocks.
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14.
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The ________ mountains in North America were formed by a
continent-continent collision in the Paleozoic.
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15.
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Any accreted crustal fragment that has a geologic history
distinct from that of the adjoining fragments is termed a(n) ________.
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