Final answer:
The lithosphere is comprised of organic, biological, and inorganic materials, forming the solid foundation of Earth's crust and upper mantle crucial for various geological processes.
Step-by-step explanation:
The three equally important components that the lithosphere is composed of are organic, biological, and inorganic materials. These components are crucial for forming the solid foundation of the Earth's crust and upper mantle, on which various geological processes like weathering and erosion take place. Organic materials include the remains and products of living organisms, biological materials encompass the current living organisms and their resultant interactions with the environment, and inorganic materials refer to non-living chemical and mineral constituents of the soil and rocks.