Across
- 2. changing from a liquid to a vapor or gas.
- 6. water added until all the spaces or pores are filled.
- 8. removal of soil to form relatively narrow and deep trenches known as gullies.
- 11. plant material that remains when a plant dies or is harvested.
- 13. wearing away.
- 14. water-bearing rock formation.
- 15. level line around a hill in which all points along the line are the same elevation.
- 16. material that supplies nutrients for plants.
- 18. town having a harbor for ships to take on cargo.
- 19. movement of water to surface, to atmosphere, to surface.
- 20. close-growing crop planted to protect the soil and prevent erosion.
- 22. water that is held too tightly by soil particles for plant roots to absorb.
- 23. level below which soil is saturated or filled with water.
- 24. material that dissolves or otherwise changes most other materials.
Down
- 1. water that flows from the land to oceans and contains little or no salt.
- 3. addition of water to plants to supplement that provided by rain or snow.
- 4. strip of grass growing in the low area of a field where water can gather and cause erosion.
- 5. water that drains out of soil after it has been wetted.
- 7. water that flows up the mouth of a river as the ocean tide rises and comes in.
- 9. removal of soil from broad areas of the land.
- 10. seed is planted directly into the residue of the previous crop, without exposing the soil surface.
- 12. interdependence of plants or animals on each other for food.
- 17. amount and type of nutrients in the soil.
- 18. a chemical action that results in the dropout of solids in a solution.
- 21. water that drains out of soil after it has been wetted.