What are the methods of preventing or reducing soil erosion?

Explanation

To answer the question about the methods of preventing or reducing soil erosion, we can break it down into several key steps:

### Step-by-Step Solution:

1. **Understanding Soil Erosion**:
- Soil erosion refers to the removal of the top fertile layer of soil, which is crucial for plant growth and maintaining healthy ecosystems.

2. **Planting Trees and Afforestation**:
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