Which mixture can be separated by using the equipment show? A. NaCl(a) and SiO2(s)
B. NaCl(aq) and C6H12O6(aq)
C. CO2(aq) and NaCl(aq)
D. CO2(aq) and C6H12O6(aq)

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.