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

खाइयों में दफनाने वाले अपशिष्ट के निपटान की विधि क्या कहलाती है?

1
चूर्णन
2
कंपोस्टिंग
3
कर्तन
4
भस्मीकरण
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