Composting is carried out from

Options

A. Sewage sludge
B. Rubbish
C. Industrial wastes
D. Garbages and sewage sludge.

Answer

**Step-by-Step Solution:**

1. **Understanding Composting**: Composting is a natural process that involves the decomposition of organic matter. It transforms biodegradable waste into nutrient-rich compost.

2. **Materials Used in Composting**: The primary materials used for composting include biodegradable waste. This can consist of kitchen scraps (like vegetable peels, fruit waste), garden waste (like leaves, grass clippings), and sewage sludge.

3. **Biodegradable and Non-Pollutant**: It is crucial that the materials used in composting are biodegradable and non-pollutant. This ensures that the compost produced is safe and beneficial for the environment.

4. **Layering Process**: The composting process often involves layering. The biodegradable waste is spread out in layers, and sometimes earthworms are added to help speed up the decomposition process.

5. **Covering the Layers**: After adding the biodegradable materials, they are often covered with a layer of soil. This helps retain moisture and creates an ideal environment for the microorganisms and earthworms to break down the organic matter.

6. **Final Outcome**: The end product of composting is nutrient-rich compost that can be used to enrich soil in gardens and farms, promoting healthy plant growth.

**Final Answer**: Composting is carried out from biodegradable waste such as kitchen scraps, garden waste, and sewage sludge.

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