| 31. | Climate factors and vegetation / soil organisms have weathered the glacial parent materials to form the present day Houdek soil.
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| 32. | Their parent material is typically base-rich and calcareous and include limestone, loess, or wind-blown sand.
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| 33. | The type of clay that is formed is a function of the parent material and the composition of the minerals in solution.
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| 34. | The parent material of most prairie soil was distributed during the last glacial advance that began about 110, 000 years ago.
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| 35. | Soils derived from any parent material, including serpentinite, differ greatly in the amounts of plant-available nitrogen in them.
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| 36. | As these bedrocks weather, they become the parent material of the coarse, acidic, red soil found throughout the area.
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| 37. | They often develop over relatively permeable bedrock of some kind, but are also found over unconsolidated parent materials like river gravels.
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| 38. | Soils which have developed from nutrient-poor parent materials such as sandstone, quartzite and granite are most sensitive to acidification.
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| 39. | Based on the testing, the FBI concluded that flask RMR-1029 was the parent material of the anthrax spore powder.
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| 40. | Due to the low heat input, TBC removal can be completed with minimal damage to the underlying metallic coatings and parent material.
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