Across
- 6. When productive land becomes a desert
- 7. Resources that cannot be remade
- 9. Unweathered parent material
Down
- 1. Replenishment of natural resources when they are used
- 2. Resources that are provided by Earth
- 3. Resources that can be remade by human intervention
- 4. A layer of crushed sand and stone that forms on the surface of the earth
- 5. Material left behind after mining ore
- 8. A natural resource that can be mined for profit