Because the mantle has convection currents that push the plates around very slowly.
The answer is tectonic plates floating on the lithosphere. Does that answer your question? LOL :)
I believe it is the Platonic Plates Theory
No, plates will always keep moving because of the convection currents in the mantle under the Earth's crust, as long as the Earth's interior stays hot. This is not likely to happen before the Sun swallows up our planet far, far in the future.
tension
it may be gravity
The crust is formed on tectonic plates that are always moving because of the magma melting the rock under the surface causing them to move, so, in a way the Earth's crust is moving.
Simple- Convection in the mantle causes mantle to slowly move, and it pushes against the crust. As it does this, the tectonic plates move.
The answer is tectonic plates floating on the lithosphere. Does that answer your question? LOL :)
its always underground, the shock waves from the moving plates go up through the crust
Tectonic Plates
No, both the continental and oceanic plates are always moving. Moving slowly, but always moving.
New crust formation.
When the plates are moving apart.
They are called plate tectonics.
yes because of plates below the crust
Plates have always been moving away from each other there, so new crust is being formed there while the crust on the other side of those plates is being subducted into the mantle.
When it is two continental plates, new oceanic crust is formed, and when this continues, more oceanic crust is formed between the plates.