Across
- 3. crop grow to sell
- 6. naive tribe
- 7. area litter or no moisture
- 9. land becomes dryer and less productive
- 10. railroads
- 11. hunt for food,gather their food
- 13. form a government
- 15. not having enough of money or goods
- 16. farming just enough to live
Down
- 1. artificial application of water to land
- 2. no rain for a long time
- 4. in short supply and shortage
- 5. wanders/mobile/move
- 8. Diffusion spreading of customs and bilefs
- 9. clearing trees
- 12. Erosion wind/water wear away land
- 14. Leftover