What is the scientific theory that explains the movement of geologic plates?

• Plate tectonics

• Continental drift

• Seafloor spreading

• Volcanism

Which layer of the Earth is broken into large rocky plates?

• Lithosphere

• Asthenosphere

• Mantle

• Core

What type of plate boundary is characterized by two plates moving away from each other?

• Divergent

• Convergent

• Transform

• Subduction

Which mountain range was formed by the subduction of the Nazca Plate under the South American Plate?

• Andes

• Himalayas

• Rockies

• Alps

What is a well-known example of a transform boundary?

• San Andreas Fault

• Mid-Atlantic Ridge

• East African Rift

• Pacific Ring of Fire