BOD क्या है?
- Aप्रदूषण की माप
- Bऑक्सीजन की माप
- ✓जलाशयों में उपस्थित कार्बनिक अशुद्धियों की माप
- Dजल में धुले हुए औक्सीजन की माप
Answer: C.
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Answer: C.
View full solution →Answer: D.
View full solution →Answer: D.
View full solution →Answer: B.
View full solution →Answer: C.
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