* The Earth's crust is fragmented: The Earth's crust is broken into tectonic plates. These plates move and interact, causing earthquakes, volcanoes, and mountain ranges. There's no single continuous layer of bedrock.
* Different rock types: The Earth's crust is made up of various rock types, including igneous, sedimentary, and metamorphic rocks. These rocks are distributed unevenly across the Earth's surface.
Instead of a continuous shell, we have:
* The lithosphere: This is the rigid outer layer of the Earth, which includes the crust and the uppermost part of the mantle. It's broken into the tectonic plates mentioned above.
* The crust: This is the outermost layer of the Earth, composed of different types of rock.
While there isn't a single continuous layer, the bedrock below the surface does contribute to the overall structure of the Earth.