Geomorphological Impacts of Dams and Irrigation Projects

Geomorphological Impacts of Dams and Irrigation Projects

15 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

What is the primary geomorphological impact of dam construction?

  1. Erosion
  2. Deposition
  3. Landslides
  4. Flooding
Question 2 Multiple Choice (Single Answer)

How do dams affect the sediment budget of a river?

  1. They increase the sediment load.
  2. They decrease the sediment load.
  3. They have no effect on the sediment load.
  4. They change the composition of the sediment load.
Question 3 Multiple Choice (Single Answer)

What is the term for the process by which sediment is deposited upstream of a dam?

  1. Aggradation
  2. Degradation
  3. Erosion
  4. Sedimentation
Question 4 Multiple Choice (Single Answer)

What is the term for the process by which sediment is eroded downstream of a dam?

  1. Aggradation
  2. Degradation
  3. Erosion
  4. Sedimentation
Question 5 Multiple Choice (Single Answer)

How do dams affect the morphology of a river channel?

  1. They make the channel wider.
  2. They make the channel narrower.
  3. They make the channel deeper.
  4. They make the channel shallower.
Question 6 Multiple Choice (Single Answer)

How do dams affect the sediment transport capacity of a river?

  1. They increase the sediment transport capacity.
  2. They decrease the sediment transport capacity.
  3. They have no effect on the sediment transport capacity.
  4. They change the composition of the sediment transport capacity.
Question 7 Multiple Choice (Single Answer)

What is the term for the process by which a river channel adjusts to a change in sediment load?

  1. Aggradation
  2. Degradation
  3. Erosion
  4. Sedimentation
Question 8 Multiple Choice (Single Answer)

How do dams affect the geomorphic diversity of a river?

  1. They increase the geomorphic diversity.
  2. They decrease the geomorphic diversity.
  3. They have no effect on the geomorphic diversity.
  4. They change the composition of the geomorphic diversity.
Question 9 Multiple Choice (Single Answer)

How do dams affect the ecological health of a river?

  1. They improve the ecological health.
  2. They degrade the ecological health.
  3. They have no effect on the ecological health.
  4. They change the composition of the ecological health.
Question 10 Multiple Choice (Single Answer)

What are some of the geomorphological impacts of irrigation projects?

  1. Erosion
  2. Deposition
  3. Salinization
  4. Waterlogging
Question 11 Multiple Choice (Single Answer)

How do irrigation projects cause erosion?

  1. By increasing the amount of water flowing through a river.
  2. By decreasing the amount of water flowing through a river.
  3. By changing the sediment load of a river.
  4. By changing the geomorphic diversity of a river.
Question 12 Multiple Choice (Single Answer)

How do irrigation projects cause deposition?

  1. By increasing the amount of water flowing through a river.
  2. By decreasing the amount of water flowing through a river.
  3. By changing the sediment load of a river.
  4. By changing the geomorphic diversity of a river.
Question 13 Multiple Choice (Single Answer)

How do irrigation projects cause salinization?

  1. By increasing the amount of water flowing through a river.
  2. By decreasing the amount of water flowing through a river.
  3. By changing the sediment load of a river.
  4. By changing the geomorphic diversity of a river.
Question 14 Multiple Choice (Single Answer)

How do irrigation projects cause waterlogging?

  1. By increasing the amount of water flowing through a river.
  2. By decreasing the amount of water flowing through a river.
  3. By changing the sediment load of a river.
  4. By changing the geomorphic diversity of a river.
Question 15 Multiple Choice (Single Answer)

What are some of the ways to mitigate the geomorphological impacts of dams and irrigation projects?

  1. Using sediment bypass channels.
  2. Planting vegetation along riverbanks.
  3. Using terraces and contour farming.
  4. All of the above