| Using recycled goods as raw material provides numerous environmental benefits such as reducing demands on municipal landfills, mitigating mining and logging operations, and preserving depletable natural resources. |
| Is there some uncertainty in the projections about depletable assets like oil stores? |
| The demand for water, a depletable natural resource, is constantly going up even as the resource is being degraded. |
| This depletable resource needs to be protected. |
| The reserves of these fuels, thus energy that they contain, are finite and depletable. |
| Along with food, water and ammunition, power is a depletable resource for soldiers in the field. |
