100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

Which layer(s) of the Earth make up the tectonic plates? a. lithosphere. b. continental crust only c. Continental crust and ocean crust.

d. asthenosphere and top layer of mantle.

Which layer(s) of the Earth make up the tectonic plates? a. lithosphere. b. continental crust only c. Continental crust and ocean crust.

d. asthenosphere and top layer of mantle.

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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.

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.

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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.

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.

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

The main source of downward convection flow in the mantle is called ____.

a. ridge-pull b. slab-push c. slab-pull d. ridge-push

The main source of downward convection flow in the mantle is called ____.

a. ridge-pull b. slab-push c. slab-pull d. ridge-push

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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

100 16,000 200 32,000 500 64,000 1,000 128,000 2,000 250,000 4,000 500,000 8,000 1,000,000

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

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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