An ionic compound is made up of... A. Atomswhose sizes are so different that the atoms
form ions
B. atoms whose electronegativities are so different that
the atoms form ions
C. atoms that share electrons
D. two nonmetals

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.