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5 Written questions

5 Matching questions

  1. c
  2. i
  3. humus
  4. Glacial Till
  5. t
  1. a concretions: dense mass of secondary minerals in a horizon; B or C
  2. b slightly decomposed only with O
  3. c mostly stable fraction of soil organic matter remaining after the major portion of plant and animal residues have decomposed
  4. d Moved by Ice
  5. e texture change: clay accumulation in the B horizon

5 Multiple choice questions

  1. illuviation
  2. cementation C horizon
  3. Weak clay accumulation, B
  4. Ca2+, Cell wall component, pectate
  5. addition of H2O molecule

5 True/False questions

  1. pedonsmallest volume we call a soil

          

  2. illuviationthe accumulation of clay and humus in a particular horizon

          

  3. Lacustrinemostly stable fraction of soil organic matter remaining after the major portion of plant and animal residues have decomposed

          

  4. Mass Flow (convection)a combination of all management and land-use methods that safeguard the soil against deterioration by natural or man-induced factors

          

  5. Aorganic horizon in various stages of decomposition >20% organic

          

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