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5 Written questions

5 Matching questions

  1. Competence
  2. cryoturbation
  3. deposition at river mouths
  4. physical weathering - thermal expansion
  5. ice sheets
  1. a soil layer churned by frost action
  2. b max. particle size that rivers can move - increases with velocity, depth and slope
  3. c occur when a river reaches base level, flat surface or standing water. Alluvial fans or Deltas. Due to reduced velocity. Many tributaries appear.
  4. d volume change due to change in temperature. Heating - expansion. Cooling - contraction. rocks and minerals expand in response to daily heating and cooling, seasonal heating and cooling and wildfires. For effectiveness requires frequent and extreme fluctuations.
  5. e most extensive

5 Multiple choice questions

  1. unfrozen ground
  2. Temperature and Precipitation
  3. slow retreat of terminus leaves series of end morrain
  4. Bedrock and Alluvial
  5. small island that form when there is a high load of sediment

5 True/False questions

  1. mudflowrapid downslope flow of water and soil (mostly clay)


  2. erosiongranular old snow, forms surface layer in accumulation zone, intermediate between ice and snow


  3. mass movement - equationdriving force > resisting force (gravity > shear strength, cohesiveness and internal friction). Gravity (mass, acceleration due to gravity, weight, friction force, coefficient of friction)


  4. pluckinglow oval hill made of deposited till, molded by overriding glacier, upstream side is steep, downstream side is tapered - long axis parallel to direction of ice flow


  5. Controlling factors of sediment yieldclimate and vegetation, basin size, elevation and relief, rock type, land use and human activity. Small basins have more sediment because of steep slope and mass movements. If basin is large there is less force and more places for deposition


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