Plate Tectonics Question Preview (ID: 127)

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What does Pangaea mean?
a) It is the name of an extinct volcano.
b) It is the French word for volcano.
c) It is the name of an ancient supercontinent.
d) It is a huge disruption of the Earth's atmospheric circulation.

What type of plate boundary has plates sliding past each other?
a) convergent boundaries
b) divergent boundaries
c) subduction zones
d) transform boundaries

When 2 continental plates collide which landform is created?
a) trench
b) volcano
c) mountain
d) island

Where is oceanic crust destroyed?
a) mid-ocean ridges
b) trenches
c) divergent plate boundaries
d) transform plate boundaries

Which of the following is not considered a result of the movement of tectonic plates?
a) earthquakes
b) mountain ranges
c) increased volcanic activity
d) karst topography

Of the following statements, which best supports the continent drift theory?
a) All oceans are salty.
b) Igneous rock are found on all continents.
c) Fossils of the same species of extinct land plants have been found in both South America and Africa.
d) Early humans migrated to North America over a land bridge from eastern Asia.

The edges of moving crustal plates are often defined by
a) ocean basins
b) frequent seismic activity
c) intercontinental plains
d) Earth's largest rivers

All of the following support the theory of continental drift except that
a) the continents seem to fit together like pieces of a puzzle.
b) there are similar fossils on different continents.
c) mountain ranges in South America and Africa line up.
d) the North Pole and Antarctica are covered with ice.

The Marianas Trench in the Pacific Ocean is 36,160 feet below sea level. This deep oceanic trench is caused by
a) swift ocean currents eroding away the ocean floor.
b) the collapse of an empty magma chamber in a large volcano.
c) excessive boat traffic disrupting the normal sedimentation process.
d) two tectonic plates colliding and one plunging below the other.

When the sea floor spreads apart, volcanoes and ridges are formed because
a) sediments are deposited where the floor spreads, building ridges.
b) as the plates pull apart, magma moves to the surface, building ridges.
c) ocean water pushes down on the surrounding sea floor, pushing up ridges.
d) underwater earthquakes lift the sea floor into long ridges.

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