Computer · Environmental Engineering
मानक 5-दिवसीय बायोकेमिकल ऑक्सीजन डिमांड (BOD5) का निर्धारण कितने तापमान पर किया जाता है?
- 125 °C
- 210 °C
- 315 °C
- 420 °C✓
सही उत्तर देखें
20 °C
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