Questions › Category: Civil Engineering › Stale sewage is usually -2 Vote Up Vote Down VideRime Staff asked 6 years ago Stale sewage is usually a) neutral b) acidic c) alkaline d) of pH value 7 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