Environment & Ecology · Environment
अपशिष्ट जल (wastewater) के उपचार की प्रक्रिया को सामान्यतः ______ उपचार कहा जाता है।
- 1जीवाणु (bacteria)
- 2प्रदूषक (pollutant)
- 3सीवेज (sewage)✓
- 4सूक्ष्मजीव (microbe)
सही उत्तर देखें
सीवेज (sewage)
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