What is the liquid layer of the Earth's core called:

What type of fault usually occurs because of tension?

What type of fault usually occurs because of compression?

In a reverse fault, where does the hanging wall move relative to the footwall?

In a normal fault, where does the hanging wall move relative to the footwall?

What kind of force can lead to mountains with sharp, jagged peaks?

What is the area where two tectonic plates meet called?

What type of boundary is formed when plates collide?

What type of boundary is formed when plates separate?

What type of boundary is formed when plates slide past each other?

Which of these did NOT provide evidence for continental drift?

According to the continental drift theory, a single, huge continent once existed called

Where does sea-floor spreading take place?

Used to measure the movement of tectonic plates

Hardens to form new rock at mid-ocean ridges

Used to measure the density of the Earth's layers

Used as evidence for continental drift

Used as evidence for sea-floor spreading

Stress that squeezes a rock layer

The raising of a rock layer

Stress that stretches a rock layer

The sinking of a rock layer