Across
- 3. remove all foreign material
- 7. following the level of the land around a hill
- 9. water that drains out of the soil after it has been wetted
- 12. any material that supplies nutrients for plants
- 13. a soil or wall structure built across the slope to capture water
- 14. a close growing crop planted to protect the soil surface
- 15. the chain of animals that are eaten or eat other animals
- 17. planting crops without plowing
- 18. large land area where absorbed water goes into bodies of water.
- 19. water that has very low salt or no salt
- 22. changing from a liquid to a gas
- 23. a substance that dissolves or changes materials
Down
- 1. too much of a plant is eaten
- 2. moisture from rain or snow
- 4. The water that flows up the mouth of a river
- 5. wearing away of soil
- 6. Adding water for crops
- 8. An area with very low precipitation
- 10. water that is held too tightly for plant roots to absorb
- 11. a material placed on soil surface the help growth
- 12. water that drains out of soil
- 16. when water fills all the spaces or pores in the soil
- 18. the cycling of water
- 19. the amount and type of nutrients in the soil
- 20. Water absorbing and nutrient holding soil
- 21. a material that reduces the acidic content of soil