Given below is the flowchart of sewage treatment. Identify …

Biology Microbes in Human Welfare Image Based Problems Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

Given below is the flowchart of sewage treatment. Identify A, B, C,D and E and select the correct option.

A–Small aeration tank, B–Microbial digestion, C–High BOD, D–Activated sludge, E–Aerobic sludge igesters

A–Large aeration tank, B–Mechanical agitation, C–Increased BOD, D–Activated sludge, E–Aerobic sludge digesters

A–Small aeration tank, B–Microbial digestion, C–Low BOD, D–Activated sludge, E–Anaerobic sludge digesters

A–Large aeration tank, B–Mechanical agitation, C–Reduced BOD, D–Activated sludge, E–Anaerobic sludge digesters

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