Download Slide 1

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The Himalayas in South Asia are an
example of what type of plate boundary?
a. convergent oceanic-continental
boundary
b. convergent continental-continental
boundary
c. divergent boundary
d. transform fault boundary
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The Himalayas in South Asia are an
example of what type of plate boundary?
a. convergent oceanic-continental
boundary
b. convergent continental-continental
boundary
c. divergent boundary
d. transform fault boundary
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If a deep ocean trench is located adjacent
to a continent, active volcanoes would likely
be found ____.
a. seaward from the trench
b. at the ends of the trench
c. along the axis of the trench
d. landward from the trench
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If a deep ocean trench is located adjacent
to a continent, active volcanoes would likely
be found ____.
a. seaward from the trench
b. at the ends of the trench
c. along the axis of the trench
d. landward from the trench
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According to Wegener’s ideas
a. continents were once joined
b. the Earth was about 6000 years old
c. there was no evidence to suggest that the
Earth was changing
d. all rocks on Earth were of the same age
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According to Wegener’s ideas
a. continents were once joined
b. the Earth was about 6000 years old
c. there was no evidence to suggest that the
Earth was changing
d. all rocks on Earth were of the same age
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The Hawaiian Islands were formed when
the Pacific Plate moved over ____.
 a. a subduction zone
 b. the Aleutian Plate
 c. an ocean ridge
 d. a hot spot
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The Hawaiian Islands were formed when
the Pacific Plate moved over ____.
 a. a subduction zone
 b. the Aleutian Plate
 c. an ocean ridge
 d. a hot spot
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Continental volcanic arcs are associated
with what type of plate boundary?
a. convergent continental-continental
boundary
b. convergent oceanic-continental
boundary
c. transform fault boundary
d. convergent oceanic-oceanic boundary
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Continental volcanic arcs are associated
with what type of plate boundary?
a. convergent continental-continental
boundary
b. convergent oceanic-continental
boundary
c. transform fault boundary
d. convergent oceanic-oceanic boundary
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Which layer(s) of the Earth make up the tectonic plates?
a. lithosphere.
b. continental crust only
c. Continental crust and ocean crust.
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d.
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asthenosphere and top layer of mantle.
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Which layer(s) of the Earth make up the tectonic plates?
a. lithosphere.
b. continental crust only
c. Continental crust and ocean crust.
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d.
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asthenosphere and top layer of mantle.
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What do the strips of magnetism represent
on the ocean floor on either side of a ridge?
a. areas where there is no magnetism
b. areas where the rocks have a normal
polarity
c. areas where the rocks have a reversed
polarity
d. areas of different types of rock
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What do the strips of low-intensity
magnetism represent on the ocean floor?
a. areas where there is no magnetism
b. areas where the rocks have a normal
polarity
c. areas where the rocks have a reversed
polarity
d. areas of different types of rock
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Which of the following describes a volcanic island arc?
a. an arc-shaped volcano in the ocean
b. a chain of volcanic islands parallel to an ocean
trench
c. a line of volcanoes on a continent, parallel to a
boundary
d. a chain of active and extinct volcanoes formed over
a hot spot
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Which of the following describes a volcanic island arc?
a. an arc-shaped volcano in the ocean
b. a chain of volcanic islands parallel to an ocean
trench
c. a line of volcanoes on a continent, parallel to a
boundary
d. a chain of active and extinct volcanoes formed over
a hot spot
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The formation of the Hawaiian Islands is
associated with ____.
a. a divergent plate boundary
b. a transform fault boundary
c. a convergent plate boundary
d. no plate boundary of any kind
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The formation of the Hawaiian Islands is
associated with ____.
a. a divergent plate boundary
b. a transform fault boundary
c. a convergent plate boundary
d. no plate boundary of any kind
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100
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Which situation will produce a deep-focus earthquake?
a. Lithosphere ruptures at a transform fault.
b. Super-hot mantle rushes to the surface at a hot
spot.
c. Magma forces its way through cracks in the
lithosphere.
d. Tectonic plates pass each other in a subduction
zone.
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Which situation will produce a deep-focus earthquake?
a. Lithosphere ruptures at a transform fault.
b. Super-hot mantle rushes to the surface at a hot
spot.
c. Magma forces its way through cracks in the
lithosphere.
d. Tectonic plates pass each other in a subduction
zone.
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How does the age of seafloor sediments
change with increasing distance from the
ocean ridge?
a. Age decreases.
b. Age increases.
c. Age stays the same.
d. Age varies without a pattern.
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How does the age of seafloor sediments
change with increasing distance from the
ocean ridge?
a. Age decreases.
b. Age increases.
c. Age stays the same.
d. Age varies without a pattern.
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The main source of downward convection
flow in the mantle is called ____.
a. ridge-pull
b. slab-push
c. slab-pull
d. ridge-push
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The main source of downward convection
flow in the mantle is called ____.
a. ridge-pull
b. slab-push
c. slab-pull
d. ridge-push
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Which one of the following has NOT been
proposed as a mechanism of plate motion?
a. slab-pull
b. mantle convection
c. ridge-push
d. crust-core convection
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Which one of the following has NOT been
proposed as a mechanism of plate motion?
a. slab-pull
b. mantle convection
c. ridge-push
d. crust-core convection
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According to whole-mantle convection, ____.
a. small amounts of material from the lower
mantle move upward to the surface
b. slabs of cold oceanic lithosphere move
down and into the lower mantle
c. large slabs of continental crust are pulled
down into the lower mantle
d. material from the inner core rises into the
mantle to form super hot plumes
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According to whole-mantle convection, ____.
a. small amounts of material from the lower
mantle move upward to the surface
b. slabs of cold oceanic lithosphere move
down and into the lower mantle
c. large slabs of continental crust are pulled
down into the lower mantle
d. material from the inner core rises into the
mantle to form super hot plumes
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