Across
- 1. land changing into dry regions and losing water
- 3. no crops are farmed on this land
- 5. more than one crop in a field; reduces pest and disease
- 7. food insecurity; Irish potatoes
- 9. killing the organisms that hurt plants
- 10. use this to reduce bacteria
- 12. too many fish being caught
- 17. chemicals that control pests
- 19. more cities, people, and towns
- 21. there's too much water in the soil
- 22. rock with minerals; common find in a popular video game
- 24. when animals decay, this material forms
- 25. a farm with the same crop
- 26. at least two crops are grown on this land
- 27. nutrients are not sufficient enough to keep up health
- 28. method for growing plants without water
- 29. people don't want developments near them
Down
- 2. movement of water into the soil
- 3. where farmers will capture the fish
- 4. rocks falling in when groundwater withdraws
- 6. materials moving downward through soil by water
- 8. convert organic material into fertilizer with decomposition
- 11. destroys mushrooms and other members in this kingdom
- 13. breaks wind with trees
- 14. chemicals that kill plants
- 15. salt building up; can be caused by excessive irrigation
- 16. high concentration of animals for production
- 18. cultivating crops
- 20. farming on a slope
- 23. the aftermath of extracting from ores