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Conservation
| Term | Definition |
|---|---|
| Pollution | when a harmful substance is added to the environment. |
| Conservation | using resources wisely |
| compost | is a mix of dead or decaying matter |
| reduce | to use less of something |
| reuse | to use something over again |
| recycle | to make a new product from old materials. |
| renewable resource | is a useful material that is replaced quickly in nature |
| nonrenewable resource | is a useful material that cannot be replaced easily. |
| fossil fuel | energy source that formed millions of years ago |
| fossil | evidence of an organism that lived long ago |