Certified Storm Water Operator Practice Exam

Which of the following is a significant factor related to the erosion of soil?

1. Heat retention

2. Elevation change

3. Vegetative stabilization

4. Coal content

The correct answer is: Vegetative stabilization

Vegetative stabilization is a significant factor related to the erosion of soil because vegetation plays a crucial role in protecting the soil surface from the destructive forces of wind and water. Plant roots help to bind the soil together, reducing its susceptibility to erosion. Moreover, the presence of vegetation can slow down the velocity of water runoff, allowing for better absorption and reducing the energy that can dislodge soil particles. In contrast, factors such as heat retention, elevation change, and coal content do not contribute directly to soil erosion control. While elevation change can influence water flow patterns, it does not inherently stabilize soil. Similarly, heat retention can affect soil moisture and temperature but does not provide the protective benefits that vegetation offers. Coal content may be related to soil composition but is not a significant factor influencing erosion dynamics. Therefore, vegetative stabilization stands out as the key factor in mitigating soil erosion.