Which of the following is the best example of kinetic energy? A bowling ball rolling toward the pins
A horse standing in an open field
A pitcher preparing to throw a ball
A runner in position at the start line

According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.