Computer · Environmental Engineering
पानी का वातन (aeration) मुख्य रूप से किसे दूर करने के लिए किया जाता है?
- 1गंदलापन (Turbidity)
- 2रंग (Colour)
- 3गंध (Odour)✓
- 4कठोरता (Hardness)
सही उत्तर देखें
गंध (Odour)
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