| A | B |
| conservation | protection, restoration, and management of natural resources |
| environment | all of the resources, influences, and conditions at or near Earth's resources |
| fossil fuel | a nonrenewable that formed form the remains of organisms that lived long ago: coal, petrolium, and natural gas |
| nonrenewable resource | a resource that exists in fixed amount or is used up faster than it can be replaced in nature |
| ore mineral | the valuable mineral, a metalic element, that can be separated from the rock from which it is found |
| recycle | to collect and reuse materials form waste |
| renewable resource | a resource that can be replaced in nature at a rate close to its rate of use |
| reserve | the known deposits of a mineral in ores that are worth mining at the present time |