Which sphere is defined primarily by rocks, soil, and landforms?

Which sphere is defined primarily by rocks, soil, and landforms?

• A. The atmosphere.
• B. The biosphere.
• C. The geosphere.
• D. The hydrosphere.

Answer: (C)

The geosphere is the solid part of Earth—the rocks, soil, and the landforms they create. It includes the crust and mantle materials, the soil that sits on the surface, and features like mountains, valleys, and plateaus formed by tectonic and erosional processes. This set of features defines the geosphere, setting it apart from the atmosphere (the air), the hydrosphere (all Earth's water), and the biosphere (living organisms and their environments). So rocks, soil, and landforms point to the geosphere.

The geosphere is the solid part of Earth—the rocks, soil, and the landforms they create. It includes the crust and mantle materials, the soil that sits on the surface, and features like mountains, valleys, and plateaus formed by tectonic and erosional processes. This set of features defines the geosphere, setting it apart from the atmosphere (the air), the hydrosphere (all Earth's water), and the biosphere (living organisms and their environments). So rocks, soil, and landforms point to the geosphere.