Environment & Ecology · Water Pollution & BOD
निम्नलिखित में से किस प्रकार के अपशिष्ट में बहुत अधिक जैव-रासायनिक ऑक्सीजन माँग (BOD) होती है?
- 1ई-कचरा
- 2अपुचरीत घरेलू सीवेज✓
- 3भारी धातु अपशिष्ट
- 4प्लास्टिक कचरा
सही उत्तर देखें
अपुचरीत घरेलू सीवेज
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