Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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1.
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What is Pangaea?
a. | the name of a German scientist | b. | the name of the supercontinent that existed
millions of years ago | c. | another name for continental
drift | d. | the name of an ancient fossil |
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2.
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Most geologists think that the movement of Earth’s plates is caused
by
a. | conduction. | b. | earthquakes. | c. | convection currents
in the mantle. | d. | Earth’s magnetic field. |
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3.
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The geological theory that states that pieces of Earth’s lithosphere are
in constant, slow motion is the theory of
a. | subduction. | b. | plate tectonics. | c. | deep-ocean
trenches. | d. | sea-floor spreading. |
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4.
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A place where two plates slip past each other, moving in opposite directions, is
known as a
a. | sliding boundary. | b. | spreading boundary. | c. | colliding
boundary. | d. | rift valley. |
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5.
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A collision between two pieces of continental crust at a colliding boundary
produces a
a. | mid-ocean ridge. | b. | deep-ocean trench. | c. | rift
valley. | d. | mountain range. |
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6.
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The place where two plates come together is known as a
a. | sliding boundary. | b. | spreading boundary. | c. | colliding
boundary. | d. | rift valley. |
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7.
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The surface of the Earth is called the:
a. | mantle | c. | inner core | b. | outer core | d. | crust |
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8.
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Convection currents occur in the
a. | Asthenosphere | c. | atmosphere | b. | inner core | d. | mantle |
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9.
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What are two different types of crust?
a. | Continental/Oceanic | c. | North American/South American | b. | Lithosphere/Mesophere | d. | Raw /Burnt |
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10.
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Which type of crust is more dense?
a. | Anartic | c. | Continental | b. | Oceanic | d. | Round Table |
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11.
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Which part of the Earth is liquid?
a. | Crust | c. | Inner core | b. | Mantle | d. | Plates |
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12.
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The outermost ridgid layer of the Earth that includes the crust and upper mantle
is called:
a. | Lithosphere | c. | hydrosphere | b. | inner core | d. | Biosphere |
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13.
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How do scientists know about the structure of the Earth’s interior?
a. | Seismic Waves from Earthquakes | c. | Drilling Holes | b. | by Lowering
Cameras | d. | Just taking a wild
guess |
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14.
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Using data from seismic waves, geologists have learned that Earth’s
interior is made up of several
a. | continents. | b. | layers. | c. | ridges. | d. | trenches. |
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15.
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The Hypothesis that states that continents once formes a single landmass then
broke and spread apart is:
a. | Lithosphere displacement | c. | Plate Movement | b. | Laurasia | d. | Continental Drift |
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16.
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Continents were once joined together in a single landmass called:
a. | Pangea | c. | Northern hemisphere | b. | Laurasia | d. | Pacific |
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17.
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Underwater mountain chain where sea-floor spreading is occurung forms
the:
a. | Mid Pacific Ridges | c. | Mid Atlantic Trench | b. | Magnetic poles | d. | Subduction
Zones |
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18.
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In mid ocean trenches:
a. | the crust is older | c. | tectonic plates are converging | b. | teconic plates are
diverging | d. | Lithosphere is
destroyed |
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19.
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A plate boundary where plates are sliding horizontally past each other is
a
a. | collision | c. | divergence | b. | convergence | d. | Transform |
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20.
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A plate boundary where oceanic crust moves underneath continental crust is
a. | Sliding Transform | c. | Converging | b. | Diverging | d. | downlift |
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21.
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A plate boundary where continental crust is colliding is
a. | Sliding Transform | c. | Converging | b. | Diverging | d. | Subducting |
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22.
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What plate boundaries are responsible for earthquakes?
a. | Transform | c. | Converging | b. | Diverging | d. | All of the
above |
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23.
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Where oceanic crust is converging with continental crust the oceanic plate
pushes down and moves under the continental plate. Why?
a. | continental crust is more dense that oceanic crust. | c. | the force of graviy is greater on
continental crust | b. | Oceanic Crust is more dense than continental
crust | d. | none of the
above |
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24.
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What is subduction?
a. | one plate moves downward under another plate | c. | Volcanoes spew lava above the
surface | b. | two plates with the same density collide and form mountins | d. | all of the
above |
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25.
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What causes tectonic plate motion?
a. | 4 giant turtles are under earths crust and once in a while they move. | c. | convection currents
in the inner core | b. | Convection currents in the
mantel | d. | magnetic
reversal |
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26.
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Which has a higher temperature?
a. | crust | c. | outer core | b. | mantle | d. | inner core |
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27.
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Which layers of the earth are solid
a. | crust and inner core | c. | outer core and mantle | b. | mantle and outer
core | d. | only inner
core |
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28.
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Even though the inner core is solid and the outer core is liquid, the inner core
is solid. Why?
a. | because its hotter | c. | because the pressure is greater on the inner
core | b. | because its cooler | d. | all of the above |
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