Rivers

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1. What is 'lag time'?

  • Difference between the rising limb and the falling limb
  • The time between peak rainfall & peak discharge
  • The time taken for the discharge to go back to base flow level
  • The time from when rainfall starts to when it ends
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2. Which of these is a negative social impact of the 3 Gorges Dam?

  • Increased likelihood of landslides
  • 1.2 Million people resettled
  • Amount of sediment deposited fell by over 50%
  • Costed £25 billion

3. Which of these are formed due to River Rejuvenation?

  • Delta
  • Knick Point
  • Meander
  • Levée

4. The vertical movement of water through rocks due to gravity is what...?

  • Percolation
  • Infiltration
  • Interception
  • Throughfall

5. The bouncing movement of rocks along the river bed is known as what?

  • Saltation
  • Traction
  • Suspension
  • Solution
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