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1. What is 'lag time'?

  • Difference between the rising limb and the falling limb
  • The time from when rainfall starts to when it ends
  • The time between peak rainfall & peak discharge
  • The time taken for the discharge to go back to base flow level
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Other questions in this quiz

2. Which of these is a negative social impact of the 3 Gorges Dam?

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

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

  • Knick Point
  • Levée
  • Meander
  • Delta

4. Which of these are the correct equation for the 'Hydraulic Radius'?

  • Kinetic Energy / Cross sectional area
  • Discharge / Precipitation
  • Cross sectional area / Wetted perimeter
  • Wetter Perimeter / Cross sectional area

5. On which river was the 3 Gorges Dam?

  • Yangtze
  • Portualio
  • Yi
  • Thames


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