Fill in the following blank with suitable words :
The decaying leaves and animal droppings in a forest enrich the ________.

Answer

To fill in the blank in the sentence "The decaying leaves and animal droppings in a forest enrich the ________," we need to consider the role of decaying organic matter in a forest ecosystem.

1. **Understanding the Role of Decaying Matter**: Decaying leaves and animal droppings are organic materials that break down in the forest. This process is crucial for the ecosystem as it contributes to the nutrient cycle.

2. **Identifying the Enrichment**: The breakdown of these materials is primarily carried out by decomposers, which include fungi and bacteria. As they decompose the organic matter, they release nutrients back into the soil.

3. **Focusing on Soil**: The nutrients released from the decaying leaves and animal droppings enhance the quality of the soil. This process is essential for plant growth, as healthy soil is rich in nutrients.

4. **Filling in the Blank**: Based on this understanding, the suitable word to fill in the blank is "soil." Therefore, the complete sentence reads: "The decaying leaves and animal droppings in a forest enrich the soil."

### Final Answer:
The decaying leaves and animal droppings in a forest enrich the **soil**.