Temperature and pressure increase as you move into Earth’s interior.
Earth has three major layers 1. The Lithosphere 2. The Mantle 3. The Core
The Lithosphere The Lithosphere is the layer of the Earth that includes the Crust and the Upper Mantle
Lithosphere = Crust + Upper Mantle! By the way, there are two types of crust, continental crust and oceanic crust. Continental crust is mostly made of the rock Granite. It is not very dense but very thick! Oceanic crust is mostly made of the rock Basalt. It is thin but very dense! The Upper Mantle is just hot solid rock