What are the main components of the lithosphere?

The lithosphere is primarily composed of the Earth's crust and the uppermost part of the mantle. It includes a variety of rock types, such as igneous, sedimentary, and metamorphic rocks, which make up the solid outer layer of the Earth. Additionally, the lithosphere is characterized by its rigid, brittle nature, which contrasts with the more fluid asthenosphere beneath it. Together, these components play a crucial role in tectonic processes and the overall structure of the planet.