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Across 3. a sediment _?_ can be found below the baseball field to collect runoff erosion 5. weathering agent that reacts with iron in rocks, weakening them 7. mass movement with stair-step above & hummocky toe below (sit up don't _?_) 13. describes soil that contains well-developed, distinct layers/horizons 14. any of the individual distinct layers within a soil profile 15. classification (taxonomy) of gray-brown soil in most of western half of U.S. 18. large out-of-place boulder displaced, then left behind by a retreating glacier 19. hill-like pile of debris at the end or on the sides of a glacier 20. Newton's force responsible, in general, for practically all erosion actions 24. erosional deposit on a plain at the base of hills is an _?_ fan 26. classification (taxonomy) of red-brown soil in eastern half of U.S. 27. describes landform (ex: Grand Canyon) formed by erosion rather than tectonics 29. crystal whose growth when water evaporates can break rocks 30. exfoliation of igneous intrusions when weathering exposes them 31. progressive erosion sequence: sheet --> _?_ --> gully 32. accumulation of wind-deposited sediments found in China and central U.S. 34. finest weathered particles found in soil, it can take days to settle from water 36. soil component that settles fastest using the "shake & settle" technique 37. physical/chemical breakdown of rocks 38. describes weathering that does not change rock composition 41. the "lay of the land"; steeper is better 42. cone-shaped pile of rock debris at base of rockslide/rockfall areas

Down 1. slowest mass movement due to freezing/thawing, causing trees trunks to curve 2. synonym for the O and A horizons most fertile for plants 4. deposit of sediment ("outie") at the mouth of the Mississippi or Nile rivers 6. composed of decaying leaves and plant materials (NOT a chickpea dip) 8. most rapid mass movement, often in form of a mud _?_ 9. the 'pyramid' uses % of clay, silt, and sand to classify soil _?_ 10. water enters crack, freezes/expands, breaks rock apart during ice/frost _?_ 11. describes weathering that changes the composition of rocks 12. agent of erosion that only moves small particles, sometimes in haboobs 15. the vertical sequence of (horizontal) soil layers is the soil _?_ 16. most important contributing factor to weathering (best is warm/wet) 17. 'river of ice' or 'nature's bulldozer' that gouges out U-shaped valleys 21. sediment deposits from a glacier include unsorted _?_ and sorted outwash 22. the acid formed when carbon dioxide dissolves in water 23. chemical sedimentary rock most affected by acid precipitation 25. physical/mechanical category causes by animals/plants 28. agent most responsible for both physical & chemical weathering 30. category of rapid mass movement that may include rocks, soil, or even snow 33. parallel scratches in bedrock formed by the abrasions of a passing gracier 35. soil texture that is approximately equal parts clay, silt, and sand 39. mixture of weathering rock, organic matter, water, and air 40. sulfur oxides from fossil fuels dissolve in atmosphere moisture forming acid _?_