Soils

3. a gradual process that occurs when the impact of water or wind detaches and removes soil particles, causing the soil to deteriorate
4. soil pores larger than 60 mm
6. soil that's been removed when a house's foundation is dug, creating an empty shape
7. soil or rock that is developed from a granular material
8. the planting of rows of trees and/or shrubs to create alleys
11. the practice of tilling sloped land along lines of consistent elevation in order to conserve rainwater and to reduce soil losses from surface erosion
12. very deep, poorly drained, slowly permeable soils that formed in silty alluvium or loess.
16. chemically convert hazardous contaminants in soils to non-hazardous or less toxic compounds
17. the steepest angle of dip relative to the horizontal plane to which a material can be pulled without slumping
18. upper or inner dry zone of a beach
19. the process of treating a fertilizer source with an acid

1. a measure of the void spaces in soil
2. organic matter that isn't undecayed plant and animal tissue
5. an upward-growing mound of mineral deposits that have precipitated from water dripping onto the floor of a cave
9. the sliding down of a mass of earth or rock from a mountain or cliff
10. the layers of a soil sample is called a
11. the chemical reaction of carbon dioxide to give carbonates, bicarbonates, and carbonic acid.
13. insufficient oxygen for aerobic life
14. a flood-plain landform
15. make or form (sloping land) into a number of level flat areas resembling a series of steps.