Biology · Environmental Issues
स्वच्छ जल का बीओडी (Biochemical Oxygen Demand) मान आम तौर पर कितना होता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 117 ppm से अधिक
- 25 ppm से कम✓
- 310-15 ppm
- 420 ppm से ऊपर
सही उत्तर देखें
5 ppm से कम
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