The permeability of soil s listed 42. Mollisols 47. are the dominant soil order found in the southeastern United States. 48. represent the largest area of all soil orders in the United States. 49. are the most naturally productive agricultural soil 50. Lacustrine deposits are likely to be rocky, as a common feature.
Ground moraines are more extensive area-wise than are lateral moraines.
Colluvium should produce better agricultural land than alluvium. Prime farmland 59. is the best agricultural land. 61. is also defined as Class I, II, III, and IV lands. 62. is being urbanized in the United States at a rate of about two million acres per year. Gravel layer 64.