* The Earth's crust: This is the outermost layer of the Earth, and it's relatively thin compared to the other layers. It's made up of various types of rocks, including igneous, sedimentary, and metamorphic rocks.

* The uppermost part of the Earth's mantle: This layer is solid, but it's much hotter and more plastic than the crust. The mantle is composed primarily of silicate minerals, like olivine and pyroxene.

Together, the crust and uppermost mantle form a rigid, brittle layer that is broken up into tectonic plates. These plates move and interact with each other, causing earthquakes, volcanic eruptions, and mountain formation.

Here's a more detailed breakdown of the lithosphere:

* Oceanic crust: This type of crust is thinner and denser than continental crust. It's primarily composed of basalt and gabbro.

* Continental crust: This type of crust is thicker and less dense than oceanic crust. It's composed of a wider variety of rocks, including granite, sandstone, and limestone.

* Uppermost mantle: This layer is composed of peridotite, a dense, dark-colored rock. It's solid but behaves like a very viscous fluid over long periods.

The lithosphere is a dynamic and constantly changing layer of the Earth. It plays a crucial role in shaping our planet's surface and driving geological processes.