Across
- 5. Decayed plant and animal material in soil.
- 7. Compression of soil reducing air and water flow.
- 8. The nutrient-rich uppermost layer of soil.
- 9. Shaping land into steps to prevent erosion.
- 11. Fertile soil made of sand, silt, and clay.
- 15. Derived from living organisms.
- 17. Gaps in soil that hold air and water.
- 19. A charged particle in soil or water.
- 20. The wearing away of soil by wind or water.
- 23. To take in oxygen and release carbon dioxide.
- 26. Poor health due to lack of nutrients.
- 27. A measure of acidity or alkalinity.
- 28. Soil prepared for growing crops.
- 29. Rows of trees or shrubs that reduce wind speed.
Down
- 1. Support that roots provide to plants.
- 2. Plants growing in an area.
- 3. The breakdown of rocks into smaller particles.
- 4. Loss of nutrients as water drains through soil.
- 6. Organisms that break down dead matter.
- 10. Substances that support plant growth.
- 12. Tiny fragments of rock in soil.
- 13. Plowing along land curves to reduce runoff.
- 14. Extreme shortage of food.
- 16. Growing different crops together in one field.
- 18. The practice of farming and raising animals.
- 21. Materials added to soil to boost nutrients.
- 22. The upper layer of earth where plants grow.
- 24. Land turning into desert due to poor practices.
- 25. Raised barriers to control water flow in fields.