Across
- 4. Layers of soil
- 5. main component of loam
- 6. decomposing plant material
- 10. production of soil
- 12. mixed plant material and small particulate
- 14. result of non-sustainable agriculture
- 17. slash-and-burn agriculture
- 18. sand, silt, clay
- 20. recharges ground water
Down
- 1. subsoil
- 2. mixing a and o horizons
- 3. best biome for agriculture
- 7. origin of the dust bowl
- 8. protects groundwater
- 9. large loose rocks
- 11. R horizon
- 13. cause of both chemical and mechanical weathering
- 15. particle size of ~.02mm
- 16. best soil for agriculture
- 19. biome with acidic soil