1.

The sewage consists of water​

Answer»

MARK AS BRAINLIEST ANSWERPLZ FOLLOW ME Explanation:Untreated sewage may contain water; nutrients (nitrogen and phosphorus); solids (including organic matter); PATHOGENS (including bacteria, viruses and PROTOZOA); HELMINTHES (INTESTINAL worms and worm-like parasites) ; oils and GREASES; runoff from streets, parking lots and roofs; heavy metals (including mercury,HOPE IT HELPS YOU!



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