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chapter 20
| Term | Definition |
|---|---|
| ecosystem | is all the living things and nonliving things in a given area |
| blotic factor | are the living things in an ecosystem such as sunlight and water |
| abiotic factor | are the nonliving things in an ecosystem and so can a rotting long on the forest floor |
| climate | describes average weather conditions in an area over time |
| atmosphere | is the layer of gases that surrounds earth |
| evaporation | is the process during which liquid water water changes into a gas called water vapor |
| condensation | is the process during which water vapor changes into liquid water clouds form because of condensation |
| precipitation | it enters bodies of water or soaks into soil |
| nitrogen fixation |