The raw material for decomposition, the detritus includes

Options

A. Dead plant remains
B. Dead remains of animals
C. Faecal matter
D. All the above

Answer

To answer the question about what the raw material for decomposition, known as detritus, includes, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding Detritus**:
- Detritus refers to organic matter that is in the process of decomposition. It is a crucial component of ecosystems as it provides nutrients back to the soil.

2. **Components of Detritus**:
- The primary components of detritus include:
- **Dead Plant Remains**: This includes fallen leaves, branches, and any other parts of plants that have died.
- **Dead Remains of Animals**: This encompasses the bodies of animals that have died, which also contribute to the nutrient cycle.
- **Fecal Matter**: Waste produced by animals, which is also organic and contributes to the detritus.

3. **Role of Detritivores**:
- Organisms known as detritivores (like earthworms) feed on detritus and help in breaking it down further, facilitating the decomposition process.

4. **Conclusion**:
- Given that detritus includes all the aforementioned components (dead plant remains, dead remains of animals, and fecal matter), the correct answer to the question is **"all the above."**

### Final Answer:
The raw material for decomposition, the detritus, includes dead plant remains, dead remains of animals, fecal matter, and all the above.

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