Unit 6 CORRECTIONS- Plate Tectonics

Front

What is the source of heat that drives convection currents in the mantle?

Back

The core.

Front

Which plate subducts when an oceanic plate and a continental plate collide?

Back

The oceanic plate.

Front

What type of plate boundary occurs when two plates come together?

Back

Convergent Boundary.

Front

What is the area where two tectonic plates meet called?

Back

Plate boundary.

Front

What was the name of the ancient supercontinent formed 28 million years ago?

Back

Pangea.

Front

What is the process called when one tectonic plate moves under another?

Back

Subduction.

Front

What type of boundary occurs when two tectonic plates move apart?

Back

Divergent Boundary.

Front

What is the term for the movement of the Earth's plates?

Back

Plate tectonics.

Front

What geological feature is commonly formed at a convergent boundary?

Back

Mountains or deep ocean trenches.

Front

What is the term for the layer of the Earth where tectonic plates float?

Back

Asthenosphere.