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5 Written questions

5 Matching questions

  1. main controls on weathering
  2. oxbow lake
  3. degradation
  4. evidence - erratic
  5. Discharge
  1. a boulder-size rock dumped by glacier in a landscape of different composition
  2. b bow or crescent shaped lake that forms when meandering erosion cuts off bends
  3. c water, temperature, mineral type, features of surface area
  4. d downcutting of a stream channel by stream erosion
  5. e volume/unit of time - increases when velocity increases and cross-sectional area increases

5 Multiple choice questions

  1. weight- pressure on top forces ice to spread out. Flow - ice is slippery when it is lubricated by water between rock and ice as well as between grains
  2. small island that form when there is a high load of sediment
  3. no sediment accumulation, bed and banks of rocks, upland of drainage, steep slopes and high erosion
  4. straight, meandering, braided
  5. net accumulation - net ablation

5 True/False questions

  1. lithology in breakalternate feeze/thaw or wet/dry cycles - needle ice, as water freezes it pushes particles up, they fall downslope with gravity when they unfreeze. Slow downslope movement of soil and rock due to expansion and contraction (.1 to 15 mm a year). Very shallow - only upper part of soil, irregular movement that depends on slope angle and soil type

          

  2. 2 glacier typesAlpine (mountain) and continental (ice sheets and caps)

          

  3. soil creepalternate feeze/thaw or wet/dry cycles - needle ice, as water freezes it pushes particles up, they fall downslope with gravity when they unfreeze. Slow downslope movement of soil and rock due to expansion and contraction (.1 to 15 mm a year). Very shallow - only upper part of soil, irregular movement that depends on slope angle and soil type

          

  4. paleoclimatologyremoval of rocks from outcrop (water along fractures)

          

  5. angle of responsemax. angel that loose material forming a slope can maintain without shipping. balance between driving forces and resisting forces. function of grain size and texture (solid rock could be 90, loose material and soil between 13 and 24 and coarse san 30-33) - a pile of sediment resting on the angle of response represents the threshold condition, any slight disturbance causes a failure