* Surface: The Earth's surface is divided into a series of large, rigid plates called tectonic plates. These plates are constantly moving, interacting with each other at their boundaries.

* Upper Mantle: The movement of these plates is driven by convection currents in the Earth's mantle. Hot, less dense material rises, while cooler, denser material sinks, creating a circular flow that drags the plates along.

Key Locations where Plate Tectonics are Active:

* Mid-ocean ridges: Where new oceanic crust is formed as plates move apart.

* Subduction zones: Where one plate slides beneath another, often leading to volcanoes and earthquakes.

* Transform faults: Where plates slide horizontally past each other, causing earthquakes.

* Continental collisions: Where two continental plates collide, forming mountain ranges.

In summary: While the movement of tectonic plates is driven by processes deep within the Earth, the actual interaction and formation of geological features occurs at the Earth's surface.