Weathering, Erosion, and Deposition

4. the average concentration of an element in Earth's crust
6. frequently the top layer of the soil
8. the least weathered soil horizon
10. the removal of strips of soil
11. degradation the loss of some or all of a soil's ability to support plant growth
13. also known as high sulfuric acid and nitric acid from reactions in water vapor and sulfur and nitrogen oxides in the atmosphere
18. the known quantity of a resource that can be automatically recovered
19. proportion of soil bases to sil acids, expressed as a percentage
20. technique that creates a large pit
21. removal technique where the entire top of the mountain is removed with explosives
22. exchange capacity the ability of soil to absorb and release cations
23. organic horizon at the surface of many soils
24. process of looking for minerals

1. the underlying rock material from which the inorganic components of a soil are derived
2. a zone of leaching, or eluviation
3. the physical removal of rock fragments from a landscape or ecosystem
5. a soil horizon composed primarily of mineral material with very little organic matter
7. a horizontal layer in a sil defined by color and texture
8. weathering the breakdown of rocks and minerals by chemical reactions
9. element with properties that allow it to conduct electricity
11. technique used when the desired resource is more than 100 m below the surface of the Earth
12. accumilation of materials
14. the mechanical breakdown of rocks and minerals
15. high in sulfuric acid and nitric acid from reactions between water vapor and sulfur
16. tailing unwanted waste material created during mining
17. the most fully decomposed organic matter in the lowest section