Question

The Continental Crust, Oceanic Crust and very top of Earth's mantle make up a hard surface that breaks into tectonic plates. This layer of the Earth is referred to as the ____________(A)_ and it floats or moves on a melted layer of Earth called the ________________(B)__.

The layer of the Earth referred to as (A) is the lithosphere, and it floats or moves on a melted layer of Earth called the asthenosphere (B).