Questions › Category: Civil Engineering › The colour of septic sewage is 3 Vote Up Vote Down VideRime Staff asked 6 years ago The colour of septic sewage is a) black b) green c) grey d) blue Environmental Engineering MCQs Set-1 Share this Now with Friends: Share on WhatsApp (Opens in new window) WhatsApp Share on Telegram (Opens in new window) Telegram More Related 1 Answers 3 Vote Up Vote Down Best Answer VideRime Staff answered 5 years ago blue Share this Now with Friends: Share on WhatsApp (Opens in new window) WhatsApp Share on Telegram (Opens in new window) Telegram More Related