| A | B |
|---|
| natural resource | A product of the environment that is used by humans or other organisms. |
| renewable resource | A resource that can be replaced through natural processes. |
| nonrenewable | A resource that cannot be replaced by natural processes. |
| conservation | The wise use of natural resources. |
| sustainable | The use of resources to meet human needs without destroying or depleting the resources for future generations. |
| desertification | The process of turning productive land into deserts. |
| deforestation | The complete clearing of a forest. |
| overfishing | Harvesting fish faster than the population can renew its numbers. |
| pollutant | A harmful material that is released into the environment. |
| biodiversity | The total number and variety of living organisms. |
