engineering recuitment BPSC Assistant Sanitary & Waste Management Officer Mock Test 2022 Environmental Engineering

_________ ठोस अपशिष्ट के भौतिक रुपांतरण का उदाहरण है।

1
खाद बनाना
2
भस्मीकरण
3
कर्तन
4
वातीयन
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