Identify the topic in the paragraph below. 1 A major cause of excessive water use and waste is the underpricing of this precious resource. 2 Many water authorities charge a flat fee for water use and some charge even less for the largest users of water. 3 For example, about one-fifth of all U.S. public water systems do not have water meters and charge a single low rate for almost unlimited use of high-quality water. 4 Also, many apartment dwellers have little incentive to conserve water because water use is included in their rent. 5 When Boulder, Colorado, introduced water meters, water use per person dropped by 40 percent. 6 Researchers have found that each 10 percent increase in water prices cuts domestic water use by three to seven percent. Group of answer choices Boulder, Colorado's use of water meters use of water meters flat fees for water use the underpricing of water