Access to potable water is most heavily limited by _______.a.moneyb.precipitationc.raw water suppliesd.climate
Which of the following is not an option for solving the world water crisis?a.desalinationb.finding new sources of freshwaterc.reducing overconsumptiond.wastewater treatment plants
Which of the following is true of salt lakes?a.The water flowing in to salt lakes comes directly from the ocean.b.Salt lakes are formed when river bends are cut off.c.The water flowing in to salt lakes contains minerals.d.Salt lakes do not experience shrinking due to erosion.
Which of the following regulations is the primary law regarding water pollution?a.The Safe Drinking Water Actb.The Clean Water Actc.The Marine Protection, Research, and Sanctuaries Actd.WaterSense
Which of the following practices could help reduce erosion of water banks?a.buffer stripsb.natural fertilizers and pesticidesc.decrease in fossil fuel emissionsd.all of the above
Which of the following statements about desalination is true?a.Desalination is less expensive than water reclamation.b.Desalination uses large amounts of energy.c.Desalination is the main process used to provide water for crop irrigation.d.All of the above
Freshwater is used principally as drinking water.
Human activity on land can have a profound influence on marine ecosystems.
Potable water delivery systems are characterized by _______.a.high infrastructure costsb.aqueductsc.glass bottlesd.rivers
Which of the following is true about impervious building materials?a.Impervious surfaces prevent pollutants from entering the water supply.b.Vegetation and gravel are common impervious materials.c.Having fewer impervious surfaces improves water drainage.d.All of the above
Why is groundwater an important source of freshwater storage?a.It constitutes approximately 30% of Earth’s freshwater.b.It is the only viable source of freshwater in some areas.c.It is available in conditions of drought.d.All of the above
The principle difference between point source and nonpoint source water pollution is _______.a.whether the pollution is organic or inorganicb.the number of sources of pollutionc.the amount of pollutiond.whether it is from commercial or agricultural sources
Which of the following best explains the importance of water to humans? a. Water is essential for sustaining human life. b. Water is important for shipping and trade. c. Water is a valuable, profitable commodity. d. All of the above Please select the best answer from the choices provided
Flooding on rivers is caused by human activity rather than natural events.
Which of the following does not represent an impact of recreational activity on springs?a.destruction of native vegetationb.wildlife disruptionc.decreased soil erosiond.water pollution
Groundwater is only found below the water table.
Conserving water can save money while protecting the environment.
The use of wells to obtain drinking water is a modern convenience.
Why is water conservation important?a.It is important in desert areas because water is scarce, but not in areas with high levels of precipitation.b.Water conservation is important because people are currently consuming freshwater resources faster than they can be replenished.c.Water conservation is important because only 10% of Earth’s water sources are usable.d.All of the above are true.
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