In theory, tectonic plates. http://www.ucmp.berkeley.edu/geology/tectonics.html
The tectonic plates combined together
It's a shift in the Earth's tectonic plates.
It will move the tectonic plates
when tectonic plate collides with other tectonic plates or moves into another tectonic plate it affects surface in a way to create mountains. Like Himalayas are created when the indian tectonic plate collided with asian tectonic plate.
It will move the tectonic plates
Convection Currents affect earth by slowly moving the tectonic plates
Movement of tectonic plates can cause seafloor spreading and reversal of Earth's magnetic field, which can affect the organisms that are not adapted to the geological enviroment.
If plates move enough continents will lose more land under the water and people will have to move
They are called tectonic or lithospheric plates.
Tectonic plates and fault lines created by the movement of tectonic plates.
Tectonic plates are also "Continental Crust" and "Oceanic Crust". Also lithospheric plates.