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Ch 3 science
| Term | Definition |
|---|---|
| natural resources | things used by humans from nature |
| renewable resorces | things that are ether always available or replaced fast |
| nonrenewable resorces | things that are not replaced in usable time |
| pollution | the contamination of earth's land,water,and air |
| environmental science | the study of natural processes in the environment and how humans affect them. |