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earth spheres
Term | Definition |
---|---|
earth system | all of the nonliving things, living things, and processes that make up the planet earth, including the solid earth, the hydrosphere, the atmosphere, and the biosphere. |
atmosphere | a mixture of gases that surrounds a planet, moon, or other celestial body. |
geosphere | the mostly solid rocky part of earth; extends from the center of core to the surface of the crust |
hydrosphere | the portion of earth that is water |
cryosphere | one of the earths spheres where water is in solid form including snow cover, floating ice, glacies, ice caps ice sheets and frozen ground permafrost |
Biosphere | the part of earth where life exists; includes all the living organisms on earth. |
lithosphere | the solid, outer layer of earth that consists of the crust and the rigid upper part of the mantle |