the layer of waste matter or dirt that floats on water is called ? Options are a) skimmer b) sludge c) scum d) sewer Share with your friends Share 1 Disha answered this it is sewage There is no option -2 View Full Answer Deepak Silaych answered this Waste water is called sludge not that float on watet -1 Astin.andrew answered this scum 1 Sakshi Sah answered this Scum 0
