According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. 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.

greywater is gently used water from your bathroom sinks, showers, tubs, and washing machines. it is not water that has come into contact with feces, either from the toilet or from washing diapers. greywater may contain traces of dirt, food, grease, hair, and certain household cleaning products.

you need to include the text. we have no idea what you are referring to

this question is grammatically incorrect and is illegible to me so i can not answer.