26) Water in a river is likely being over-extracted when which of the following

Question

26) Water in a river is likely being over-extracted when which of the following is occurring? a. b. c. d. e. A local "cone of depression" is occurring Insufficient water is present downstream to adequately dilute wastewater Land Subsidence (sinkholes) are occurring Fish are dying of Columnaris due to low water level and high temperatures Both b and d are correct 27) Indicate whether the following statement true or false, "There is more water stored in glaciers and ice caps than in all the world's lakes and rivers combined." a. True b. False 28) What is the term we use for an area of land where the all of the precipitation that falls on that land area drains to a common point? a. Estuary b. Delta c. Watershed d. Wetland 29) When water is removed from groundwater to irrigate crops and very little or none of that water is returned to the groundwater aquifer, which of the following terms would we use to describe this type of water use? a. Non-consumptive use b. Consumptive use c. Transfer use d. Phantom use 30) Which of the following is NOT generally a problem with the over extraction of groundwater? a. b· c. d. Salt water intrusion Land subsidence Cone of depression Inability to sufficiently dilute downstream pollutants 31) Which term describes "household wastewater (as from a sink or bath) that does not contaitn serious contaminants a. Gray water b. Sewage c. Wastewater d. Potable water 32) From the material we discussed about water and sanitation needs around the world, do more people in the world lack improved water sources or improved sanitation facilities (tcilets). a. Improved Water b. Improved Sanitation

Explanation / Answer

Answers:

26. Option e

Both b and d are correct

27. Option a

True

28. Option c

Watershed

29. Option b

Consumptive use

30. Option d

Inability to sufficiently dilute downstream pollutants

31. Option a

Gray water

32. Option b

Improved sanitation

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