What does heat do when convection currents are moving?

The lithosphere combines which two layers?

What is the name of the layer that contains the upper layer of the upper mantle and crust?

Oceanic crust is made of ______

Continental crust is made of _______

What geological feature would an oceanic-oceanic convergent boundary create?

What geological feature would an oceanic-continental convergent boundary create?

What geological feature would an continental-continental convergent boundary create?

When one plate forces it's way under another plate.