35.Methanogenic bacteria are not found in: A. Rumen of cattle B. Gobas gas plant C. Bottom of water logged paddy fields D. Activated sludge
Option D. Methanogenic bacteria (bacteria that produce methane) are not found in activated sludge. Methanogenic bacteria are anaerobic bacteria. The microbes found in activated sludge are aerobic bacteria that grow rapidly and form flocs.
