Environment & Ecology · Environmental Science
जलीय प्रणालियों में घुलित ऑक्सीजन (DO) का मान घट जाता है जब:
- 1वायुमंडलीय ऑक्सीजन कम होती है
- 2नाइट्रेट सांद्रता कम होती है
- 3रासायनिक ऑक्सीजन मांग (COD) कम होती है
- 4जैविक ऑक्सीजन मांग (BOD) उच्च होती है✓
सही उत्तर देखें
जैविक ऑक्सीजन मांग (BOD) उच्च होती है
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