Choose the correct answer :
The possible beneficial effect of grazing animals is the :

Options

A. Eradication of weeds
B. Removal of wild plants
C. Removal of wild animals
D. Addition of their excreta in the soil

Answer

To solve the question regarding the beneficial effects of grazing animals, we will analyze each option provided and determine which one correctly describes a beneficial effect.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the possible beneficial effect of grazing animals. We need to evaluate each option to find the correct answer.

2. **Analyzing Option A**:
- **Option A: Eradication of weeds**.
- Grazing animals typically do not consume all types of weeds. They may eat some, but they do not effectively eradicate them.
- **Conclusion**: This option is incorrect.

3. **Analyzing Option B**:
- **Option B: Removal of wild plants**.
- Grazing animals primarily feed on grasses and other herbaceous plants rather than actively removing wild plants.
- **Conclusion**: This option is also incorrect.

4. **Analyzing Option C**:
- **Option C: Removal of wild animals**.
- Grazing animals are herbivores and do not remove wild animals from the ecosystem.
- **Conclusion**: This option is incorrect.

5. **Analyzing Option D**:
- **Option D: Adhesion of their excreta into the soil**.
- The excreta of grazing animals can enrich the soil, acting as a natural fertilizer. This is a beneficial effect as it contributes to soil fertility and enhances plant growth.
- **Conclusion**: This option is correct.

6. **Final Answer**: The correct answer is **Option D: Adhesion of their excreta into the soil**.