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5 Written questions

5 Matching questions

  1. crevasses
  2. horn
  3. Major players
  4. factor of safety
  5. riffle
  1. a 3 or more cirques adjacent to one another (the peak that survived glacier erosion all around)
  2. b defines slope stability (Fs) = sum of forces resisting movement/sum of driving forces. Fs>1= stable slope. Fs<1= unstable slope
  3. c shallow rapid flow near downstream end of bar
  4. d 1. Climate and meteorological events 2. Lithology, layering, structural control, gradient and surface material 3. vegetation and land use effect
  5. e formed because lower part of glacier moves slower than higher part but causes more deformation. differential velocities cause surface to crack

5 Multiple choice questions

  1. glacier troughs partially filled with ocean water
  2. created by tectonics, climatic change, variations in base level, variations in flood magnitude
  3. change in mass of a glacier over time = total accumulation - total ablation . Either at a point, or total mass change of glacier or over an area.
  4. sediment accumulation, channel cuts into alluvium, bed and banks are material deposited by river, lowlands, low gradient - sorting (downstream, well sorted, usefull for aquatic environments)
  5. bedload + suspended load + dissolved load

5 True/False questions

  1. medial morrainematerial in middle of glacier (when two lateral morraines come together)

          

  2. 3 glacial erosionice push, plucking and abrasion

          

  3. lodgement tilldeposited under the ice, dense and clay ric, compacted by overriding ice

          

  4. Karst topographylong-term solution weathering of limestone bedrock by surface and ground water

          

  5. Competenceblocks/columns of ice formed by intersecting crevasses. are found on base of glacier

          

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