From the following possible responses, select those responses that give the combination of bonds that makes up a triple covalent bond. :NEN:
Two sigma bor ds
Two pi bonds
One sigma bor ds and two pi bond
Two sigma bor ds and one pi bond​

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.