Which of the following is a direct benefit of vegetation in erosion prevention?

The direct benefit of vegetation in erosion prevention primarily relates to its ability to stabilize soil by controlling moisture levels. Vegetation, including grass, shrubs, and trees, plays a crucial role in maintaining soil integrity. The roots of plants help bind soil particles together, which reduces soil erosion caused by water runoff and wind. Additionally, vegetation helps to regulate moisture in the soil, ensuring that it remains at a level that supports plant growth while minimizing excess water that could lead to erosion.

While increasing air quality and creating habitats for animals are significant ecological benefits of vegetation, these aspects are more indirect. They contribute to overall environmental health but do not specifically address the mechanics of erosion prevention in the same way that soil stabilization does. The primary function of vegetation in erosion control is its direct interaction with the soil structure and moisture management, making it a key factor in preventing erosion.