Plate Motion Unit Assessment Study Guide

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• Block 1
• Block 2
• Block 4
• Block 5
• Block 6

Explain what is created when an oceanic plate collides with a contintental plate?

• subduction zone
• volcano
• mountains
• deep ocean trench

How are volcanoes formed?

• at divergent plate boundaries
• a rift and a volcano
• sudden break or shift in plates
• seafloor spreading

True or False: The Ring of Fire is a string of volcanoes and sires of seismic activity, or earthquakes, around the edges of the Pacific Ocean.

• True
• False

The mantle of the Earth ____________.

• is made of rock
• is the largest layer of earth
• creates seafloor spreading
• ring of fire

__________ is molten material underground.

• rock
• pangea
• mantle
• magma

Earthquakes occur when __________.

• Sudden break or shift in plates.
• seafloor spreading
• a deep ocean trench is made
• at the boundaries of tectonic plates

molten rock

• mantle
• erosion
• pangea
• magma

The ________ ocean is growing larger.

• Pacific
• Indian
• Atlantic
• Artic