Across
- 4. Water sources beneath Earth's surface
- 5. Type of burn used in forest management
- 7. Process of replanting trees
- 10. Type of mining that occurs on the surface
- 14. Materials found in nature used by humans
- 16. Science of maintaining wildlife populations
- 19. Controlled fish raising operations
- 20. Resources that have a finite supply
Down
- 1. Places where fish reproduce
- 2. Process of storing carbon dioxide in forests
- 3. Areas that connect separated wildlife habitats
- 6. Strips of land protecting water from pollution
- 8. Period between forest harvests
- 9. Method of catching specific fish types
- 11. Measurement of water acidity or alkalinity
- 12. Natural water storage areas underground
- 13. Process of land restoration after mining
- 15. System for tracking resources using satellites
- 17. Areas protected for wildlife preservation
- 18. Resources that can be replenished