Computer · Environmental Engineering
किसी नदी में अपशिष्ट जल (wastewater) के निपटान के मामले में, न्यूनतम घुलित ऑक्सीजन (dissolved oxygen) स्तर किस क्षेत्र में होता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1स्वच्छ जल का क्षेत्र (Zone of clear water)
- 2सक्रिय अपघटन का क्षेत्र (Zone of active decomposition)✓
- 3पुनर्प्राप्ति का क्षेत्र (Zone of recovery)
- 4निम्नीकरण का क्षेत्र (Zone of degradation)
सही उत्तर देखें
सक्रिय अपघटन का क्षेत्र (Zone of active decomposition)
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