How does mulch help in dust control?

• A. By adding weight to soil
• B. By stabilizing soil and preventing wind erosion
• C. By providing nutrients to plants
• D. By attracting moisture to the surface

Answer: (B)

Mulch plays a significant role in dust control primarily by stabilizing soil and preventing wind erosion. When mulch is applied to the surface of the soil, it acts as a protective layer that helps to minimize the impact of wind and water on the soil. This stabilization is crucial in areas prone to dust generation, as it reduces the likelihood of soil particles being lifted into the air. As a result, the frequency and volume of dust emissions are significantly decreased, contributing to a healthier environment, especially in regions where dust can cause health and visibility issues.

While options related to adding weight, providing nutrients, or attracting moisture have their importance in gardening or agricultural practices, they do not directly pertain to the specific function of dust control. The primary focus on stabilization clearly identifies the effectiveness of mulch in mitigating dust-generating operations.