lithosphere
- n the solid part of the earth consisting of the crust and outer mantle
- As it flows away from the ridges, it hardens into a more rigid layer called the lithosphere.
- Geologists see the world as a series of layers: the metallic barysphere at the center, the rocky lithosphere, the water hydrosphere, the atmosphere.
- The earth is one organism, comprising atmosphere (air), hydrosphere (water), lithosphere (rocks), biosphere (life).