Soil erosion is greater when

Options

A. There is no rain
B. The rainfall is low
C. Winds do not blow
D. The rainfall is received in a heavy downpour

Explanation

**Step-by-Step Solution:**

1. **Understanding Soil Erosion**: Soil erosion refers to the process where the top layer of soil is removed due to natural forces such as wind and water. This can lead to loss of fertile land and negatively impact agriculture.

2. **Factors Influencing Soil Erosion**: The primary factors that influence soil erosion include rainfall patterns, vegetation cover, and wind.

3. **Rainfall Impact**:
- When rainfall is low, soil erosion is generally reduced because there is less water to wash away the soil.
- However, when rainfall occurs in heavy downpours, it can lead to increased soil erosion. This is because the intensity of the rain can dislodge soil particles and wash them away more effectively.

4. **Role of Vegetation**: Vegetation plays a crucial role in preventing soil erosion. Plants help to anchor the soil with their roots, reducing the impact of raindrops on the soil surface and slowing down water runoff.

5. **Conclusion**: Therefore, soil erosion is greater when there is heavy rainfall, especially if there is little to no vegetation present to protect the soil.

**Final Answer**: Soil erosion is greater when rainfall is received in a heavy downpour, particularly in areas lacking vegetation.

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