What happens when rain falls on soil without vegetational cover?

Options

A. Rain water percolates in soil efficiently
B. rain water causes loss of surface soil
C. Rain water leads to fertility of the soil
D. Rain water does not cause any change in soil

Explanation

### Step-by-Step Solution:

1. **Understanding Vegetational Cover**:
- Vegetational cover refers to the presence of plants in an area. When there is no vegetational cover, it means the soil is bare and exposed.

2. **Impact of Rainfall on Bare Soil**:
- When rain falls on soil without vegetational cover, the water hits the bare soil directly. This can lead to several consequences.

3. **Soil Erosion**:
- The impact of raindrops can dislodge soil particles, leading to soil erosion. Without plants to anchor the soil, the top layer can be washed away easily.

4. **Water Drainage**:
- In the absence of vegetation, the water does not get absorbed efficiently. Instead, it runs off the surface, leading to poor water retention in the soil.

5. **Groundwater Formation**:
- With no plants to absorb the rainfall, less water infiltrates into the ground, resulting in reduced groundwater recharge. This can lead to a decrease in the overall water table.

6. **Consequences of Soil Erosion and Poor Water Retention**:
- The loss of topsoil can lead to decreased soil fertility, making it harder for plants to grow in the future. Additionally, the lack of water retention can lead to drought conditions.

7. **Comparison with Vegetated Soil**:
- In contrast, when rain falls on soil with vegetational cover, the roots of the plants help hold the soil in place, reducing erosion. The plants also absorb water, allowing it to seep into the ground and contribute to groundwater formation.

### Conclusion:
When rain falls on soil without vegetational cover, it leads to soil erosion, poor water retention, and reduced groundwater formation, ultimately affecting soil fertility and water availability.

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