Environment & Ecology · Environmental Engineering
कम्पोस्टिंग (खाद बनाना) और लैगूनिंग (Lagooning) मुख्य रूप से किसकी विधियाँ हैं?
- 1रासायनिक स्कंदन
- 2अपशिष्ट निपटान और उपचार (Waste disposal and treatment)✓
- 3जल निस्पंदन (Filtration)
- 4प्राथमिक अवसादन (Sedimentation)
सही उत्तर देखें
अपशिष्ट निपटान और उपचार (Waste disposal and treatment)
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