Across
- 2. exchange of gases between soil and atmosphere
- 6. Use is regulated by government agencies
- 7. Makes up about 5% of soil
- 12. most likely to disturb soil least
- 14. Soils swell when wet and shrink when dry
- 15. Makes up about 45% of soil
Down
- 1. ease with which soil can be tilled
- 3. create openings in soil as they tunnel
- 4. break down organic matter and release nutrients
- 5. non-ag use of soil
- 8. provide support as roots grow
- 9. represents space occupies by air & water
- 10. agriculture use of soil
- 11. Makes up about 25% of soil
- 13. Makes up about 25% of soil