The Continental Crust, Oceanic Crust and the very top of Earths mantle make up a hard surface that breaks into tectonic plates. This layer of the Eart is referred to as the _ and it floats or moves on a melted layer of earth called the_
The layer of the Earth that breaks into tectonic plates is referred to as the lithosphere, and it floats or moves on a melted layer of Earth called the asthenosphere.
