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1.
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(1 point) The Moho ____________.
a | lies at uniform depth everywhere it is found in Earth | b | is found deeper
underneath continents than under oceans | c | is found deeper underneath oceans than under
continents | d | is found well below the crust/mantle boundary |
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2.
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(1 point) The theory of plate tectonics
____________.
a | incorporates continental drift but not sea-floor spreading | b | incorporates
sea-floor spreading but not continental drift | c | incorporates and explains both sea-floor
spreading and continental drift | d | does not incorporate sea-floor spreading or
continental drift |
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3.
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(1 point) What tectonic plate are we on?
a | The North American Plate | b | The American Plate | c | The Pacific
Plate | d | The Juan de Fuca Plate | e | The Pasadena
Plate |
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4.
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(1 point) New crust is being
generated:
a | In the deep trenches. | b | In submarine canyons. | c | In the rift valleys
of the mid-ocean ridges. | d | At the centers of large
continents. | e | In all of these places. |
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5.
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(1 point) The Earth's oldest rocks are
found:
a | In the deep trenches. | b | In submarine canyons. | c | In the rift valleys
of the mid-ocean ridges. | d | At the centers of large
continents. | e | In all of these places. |
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6.
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(1 point) The San
Andreas Fault is:
a | a normal fault | b | the subduction zone bordering the Pacific Plate | c | a rift zone running the length of California | d | a reverse fault | e | a transform
fault |
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7.
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(1 point) Which of the following is NOT true
regarding hot spots?
a | Caused by rising plumes of mantle material | b | Volcanoes can form
over them (Hawaiian Island chain) | c | Most mantle plumes are long-lived
structures | d | Are not stationary - they move with the lithospheric
plates |
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8.
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(1 point) Why do the
Hawaiian Islands form a chain of volcanoes?
a | The mantle below flows slowly to the east, creating new
volcanoes as it does | b | The Hawaiian
Islands are not part of a chain. They are over a stationary hot spot in the
lithosphere | c | The crack in the
lithosphere is progressively splitting eastward, permitting magma to rise along a
line | d | The top of the basalt plume in the deep mantle is
dragged eastward by the eastward-moving lithosphere | e | The lithosphere carrying Hawaii slowly moves over a hotspot feeding basalt
magma to the overlying volcano |
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Match the following types of plate boundaries (a - e) with their correct
description a | Ocean-Continent Convergent Plate Boundaries | b | Continent-Continent
Convergent Plate Boundaries | c | Ocean-Ocean Convergent Plate
Boundaries | d | Divergent Plate Boundaries | e | Transform Plate
Boundaries |
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9.
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(1 point) The older and colder basaltic plate will
be subducted beneath the younger, hotter plate
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10.
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(1 point) New oceanic lithosphere created here
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11.
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(1 point) Both plates collide head-on
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12.
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(1 point) Plates slide past one another; No
new lithosphere is created or destroyed
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13.
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(1 point) The more dense oceanic plate will be
subducted beneath the lighter continental plate
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The cross-section below shows a detailed view of plate tectonic processes and
associated features. Match the correct letter to each item listed below. 
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14.
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(1 point) Feature: Volcanic arc
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15.
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(1 point) Feature: Trench
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16.
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(1 point) Feature: Mid-ocean ridge
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17.
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(1 point) Process: Subduction
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18.
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(1 point) Feature/Process: Transform
Fault/Transform Faulting
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19.
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(1 point) Process: Sea floor spreading
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20.
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(1 point) Process: Convection
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