Mounded alternating layers of vegetable refuse and night soil are referred to as_______________?
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Answer: D. None of these
Explanation
Alternating layers of organic refuse and night soil stacked in mounds are commonly referred to as composting heaps or windrows. Because the specific combination forms standard composting heaps, none of the individual listed terms are uniquely correct. Processing organic waste through layered stacking promotes microbial decomposition and nutrient stabilization. Composting manages solid organic waste through controlled aerobic and anaerobic biological degradation. Night soil refers to human excreta collected from unsanitary or non-sewered sanitation facilities. Proper carbon-to-nitrogen ratios are maintained by layering vegetable refuse with nitrogen-rich waste.
Agricultural communities historically utilized composting methods to recycle organic waste into soil conditioners. Modern waste management facilities employ controlled windrow composting to process organic municipal refuse. Pathogen destruction during high-temperature composting is critical for safe agricultural land application. Option A a heap is a general term but lacks the specific technical description of layered composting. Option B plateau refers to an elevated landform rather than a managed organic waste stack. Option C windrow describes long elongated piles but night soil layering typically forms specific mounds.
- Subject
- Engineering
- Category
- Civil Engineering
- Topic
- —
- Difficulty
- medium
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