Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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The
youngest rocks on the ocean floor are located ____. a. | near
continents | c. | far from
mid-ocean ridges | b. | at mid-ocean ridges | d. | near Asia | | | | |
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2.
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The
crust and upper mantle make up Earth's ____. a. | lithosphere | c. | core | b. | asthenosphere | d. | continents | | | | |
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3.
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Plates of the lithosphere float on the ____. a. | crust | c. | core | b. | asthenosphere | d. | atmosphere | | | | |
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4.
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The
result of plate movement can be seen at ____. a. | abyssal plains | c. | plate centers | b. | ocean
margins | d. | plate
boundaries | | | | |
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5.
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Plates move apart at ____ boundaries. a. | convergent | c. | divergent | b. | stable | d. | transform | | | | |
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6.
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A
lack of explanation for continental drift prevented many scientists from accepting that a single
supercontinent called ____ once existed. a. | Glomar | c. | Pangaea | b. | Glossopteris | d. | Wegener | | | | |
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7.
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Plates slide past one another at ____. a. | subduction
zones | c. | convection
currents | b. | transform boundaries | d. | divergent boundaries | | | | |
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8.
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The
boundary between two plates moving together is called a ____. a. | divergent
boundary | c. | transform
boundary | b. | convergent boundary | d. | lithosphere | | | | |
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9.
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Continental drift states that continents have moved ____ to their current
location. a. | vertically | c. | quickly | b. | slowly | d. | very little | | | | |
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10.
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Bands
of rock on the seafloor showing alternating magnetic orientation indicate Earth's magnetic field has
____. a. | reversed itself
in the past | c. | become
stronger | b. | weakened | d. | remained the same | | | | |
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11.
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In
order to complete a convection current, the rising material must eventually ____
Earth. a. | stop
inside | c. | sink back
into | b. | cool | d. | warm | | | | |
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12.
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The
Great Rift Valley in Africa is a ____. a. | mid-ocean ridge | c. | convergent boundary | b. | divergent
boundary | d. | transform
boundary | | | | |
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13.
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____
are formed when two continental plates collide. a. | Volcanoes | c. | Mountain ranges | b. | Strike-slip
faults | d. | Rift
valleys | | | | |
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14.
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Once the
elastic limit of rocks is passed, they break and move along surfaces called ____. a. | faults | c. | strains | b. | earthquakes | d. | stresses | | | | |
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15.
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The height
of the lines traced on paper is a measure of the energy released or the ____ of the
earthquake. a. | stress | c. | magnitude | b. | strain | d. | intensity | | | | |
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16.
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Most
earthquakes happen ____. a. | without warning | b. | in areas where
earthquakes have occurred in the past | c. | along plate boundaries | d. | all of the
above | | |
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17.
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____ faults
are caused by tensional forces. a. | Normal | c. | Reverse | b. | Strike-slip | d. | Elastic | | | | |
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18.
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At a(n) ____
fault, rocks on either side of the fault surface move past each other. a. | normal | c. | reverse | b. | elastic | d. | strike-slip | | | | |
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Matching
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Match each term with the correct statement below. a. | seafloor | c. | continents | b. | Pangaea | d. | lithosphere | | | | |
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19.
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Alfred Wegener believed that the ______ were once joined.
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20.
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The
name ______ comes from two words that mean "all land."
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21.
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The
Glomar Challenger gathered information about rocks on the _____.
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22.
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The
crust and upper mantle make up the _____.
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