state gov Maharashtra Town Planning Assistant (TPA) Test Series 2024 Environmental Engineering Sewage Sewage Treatment

वाहितमल में अधिकतर जीवाणु _______ होते हैं।

1
परजीवी 
2
रोगजनक
3
मृतजीवी (सैप्रोफाइटिक)
4
अवायवीय 
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