Plate tectonics is the theory that Earth's outer shell is divided into several plates that glides over the mantle. The tectonic plates acts like a hard shell, Which is the lithosphere.
Plate tectonics’ theory was first proposed by a scientist named Alfred Wegener in 1912. He didn’t know how to explain that the continents could move around the planet, but the researchers can now. So why do the tectonic plates move? Because hot material near the Earth's core rises, and colder mantle rock sinks. “It's kind of like a pot boiling on a stove. The convection drive plates tectonics through a combination of pushing and spreading apart at mid-ocean ridges and pulling and sinking downward at subduction zones.” Scientist Van der Elst said. Before people