Plate Tectonics Final

Front

What is the area called where the oceanic crust goes beneath the continental crust?

Back

Subduction zone

Front

What is a driving force behind the movement of tectonic plates?

Back

Convection currents in the mantle

Front

At which boundary is crust neither consumed nor created?

Back

Transform boundary

Front

The earth's outer shell is divided into slabs of rock called ______ .

Back

Tectonic plates

Front

The earth's plates, rigid slabs of rock, 'float' on the ___ .

Back

Asthenosphere

Front

What is the layer of the Earth beneath the lithosphere?

Back

Asthenosphere

Front

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

Back

Divergent boundary

Front

What is formed at a convergent boundary?

Back

Mountains, trenches, or volcanic arcs

Front

What is the theory that explains the movement of Earth's plates?

Back

Plate tectonics

Front

What is the name of the supercontinent that existed millions of years ago?

Back

Pangaea