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Water Resources Chapter 9

Water Resources Chapter 9. Review 2018. Multiple Choice Answers to pages 254-255. A B C E A A B C E A. What is the cause of acid mine drainage?.

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Water Resources Chapter 9

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  1. Water Resources Chapter 9 Review 2018

  2. Multiple Choice Answers to pages 254-255 • A • B • C • E • A • A • B • C • E • A

  3. What is the cause of acid mine drainage?

  4. What is the cause of acid mine drainage? Rainwater infiltrates into an abandoned coal mine and becomes more acidic. The low pH water causes heavy metals to leach out of the rocks.

  5. Which heavy metals leach from the rocks?

  6. Which heavy metals leach from the rocks? Cadmium, lead & mercury

  7. What do cadmium, lead and mercury do to humans if the dose is less than the LD50?

  8. What do cadmium, lead and mercury do to humans if the dose is less than the LD50? Nerve and brain damage

  9. How do dams impact the migration of salmon?

  10. How do dams impact the migration of salmon? Prevent migration and increase water temperature below the dam. How can you mitigate these impacts?

  11. How can you mitigate these impacts? Install fish ladders, change the flow rate.

  12. What is an aquifer?

  13. What is an aquifer? An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted

  14. Name the two types of aquifers.

  15. Name the two types of aquifers. Confined and unconfined.

  16. Which type of aquifer takes the longest to recharge and is least likely to become contaminated by toxic surface spills?

  17. Which type of aquifer takes the longest to recharge and is least likely to become contaminated by toxic surface spills? confined

  18. What is the main difference between the two types of aquifers?

  19. What is the main difference between the two types of aquifers? Confined aquifers are surrounded by an impermeable layer of rock or clay.

  20. What type of aquifer is located in the vicinity of letter A? A A

  21. What type of aquifer is located in the vicinity of letter A? Confined aquifer A A

  22. Define “water table”

  23. Define “water table” level of fresh water below the surface.

  24. Which well, A or B, is most susceptible to salt water intrusion? A B

  25. Which well, A or B, is most susceptible to salt water intrusion? B, it is closer to the ocean A B

  26. Which well, A or B or both, have/has a cone of depression? A B

  27. Which well or wells, A or B, has/have a cone of depression? Both. Cone of depression exists when the water table moves further from the surface. A B

  28. An rectangle shaped aquifer is about 300 meters deep, 200 meters wide and 500 meters long. At most, how many cubic meters of water does the aquifer hold?

  29. An rectangle shaped aquifer is about 300 meters deep, 200 meters wide and 500 meters long. At most, how many cubic meters of water does the aquifer hold? 300m X 200m X 500m = 30,000,000m3

  30. Which of the rivers listed below are not considered to be in the top ten largest rivers? Nile, Mississippi, Santa Ana, Congo, Colorado, Amazon, Yangze, Euphrates, Tigris, Mammoth Creek,

  31. Which of the rivers listed below are not considered to be in the top ten largest rivers? Nile, Mississippi, Santa Ana, Congo, Colorado, Amazon, Yangze, Euphrates, Tigris, Mammoth Creek,

  32. Locate the Yangtze River, Nile and the Amazon rivers in the map below.

  33. State the percent change formula.

  34. State the percent change formula.

  35. Identify the colors of the following structures: levee, dam, flood plain, and which letter is upstream of the dam? River Flow B A

  36. Identify the colors of the following structures: levee, dam, flood plain, and which letter is upstream of the dam? B is upstream Flood plain River Flow levee B levee Dam A Flood plain

  37. How do levees impact the flood plain? Flood plain River Flow levee B levee Dam A Flood plain

  38. How do levees impact the flood plain? Prevent nutrient rich waters from reaching the flood plain, may cause downstream flooding. Flood plain River Flow levee B levee Dam A Flood plain

  39. Which of the ponds below could be considered eutrophic?

  40. Which of the ponds below could be considered eutrophic?

  41. How do humans influence the primary production of lakes?

  42. How do humans influence the primary production of lakes? Through the introduction of limiting resources through runoff,like nitrogen or phosphates, lakes become more nutrient rich.

  43. What is an aqueduct?

  44. What is an aqueduct? A system of canals or pipes used to transport fresh water from a location that has lots of water to one that has less water.

  45. What is an estuary and how can aqueducts impact an estuarine environment?

  46. What is an estuary and how can aqueducts impact an estuarine environment? Estuaries are formed where salt water meets fresh water. Aqueducts remove fresh water from a river and thus make the estuary more saline which reduces the species richness of the estuary.

  47. What has happened to the Aral Sea since the 1950s?

  48. What has happened to the Aral Sea since the 1950s? Rivers that fed the sea have been diverted and as a result the sea has shrunk, become more saline and the surrounding area is prone to dust storms.

  49. What can a water poor country do besides aqueducts to get fresh water?

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