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Secondary sewage treatment is mainly a 1. Biological process 2. Physical process 3. Mechanical process 4. Chemical process

Secondary sewage treatment is mainly a
1. Biological process
2. Physical process
3. Mechanical process
4. Chemical process

Grade:10

1 Answers

Deepak Patra
askIITians Faculty 471 Points
7 years ago
Sol: Secondary sewage treatment involves aerobic and anaerobic microbes. Answer: (1)

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