nursing Rajasthan Female Health Worker 2025 Test Series Nursing Environmental Sanitation

जल में कार्बनिक पदार्थों के मिलाने से क्या होगा?

1
COD अप्रभावित रहेगी
2
BOD अप्रभावित रहेगी
3
BOD में वृद्धि होगी
4
BOD कम होगी
5
अनुत्तरित प्रश्न
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