Certified Storm Water Operator Practice Exam

What should be sprayed on the soil surface to help control wind erosion?

1. Water

2. Fertilizer

3. Chemical binders

4. Pesticides

The correct answer is: Chemical binders

Spraying chemical binders on the soil surface is an effective method for controlling wind erosion. These binders work by creating a cohesive layer that helps stabilize soil particles, preventing them from being dislodged and carried away by the wind. By binding the soil together, they reduce the chances of dust storms and loss of valuable topsoil, which is crucial for maintaining soil health and agricultural productivity. Other options, such as water, fertilizer, and pesticides, do not specifically address wind erosion control in the same way. While water can improve soil moisture and may temporarily help with erosion, it does not provide the binding effect necessary to prevent particles from being blown away. Fertilizer is intended to promote plant growth and does not directly influence wind erosion practices. Pesticides are used for pest control, with no direct role in stabilizing soil against wind forces. Thus, using chemical binders is the most targeted and effective approach to mitigating wind erosion.