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unit 10 lesson 1
| Term | Definition |
|---|---|
| earth system | the Earth System is the unified set of physical, chemical, biological and social components, processes and interactions that together determine the state and dynamics of Planet Earth, including its biota and its human occupants. |
| geosphere | any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere. |
| hydrosphere | all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds. |
| cryosphere | the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms. |
| atmosphere | the envelope of gases surrounding the earth or another planet. |
| biosphere | the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms. |