How can construction sites effectively reduce erosion problems?

The option focused on installing silt fencing and using sediment traps is the correct approach to effectively reduce erosion problems on construction sites. Silt fencing acts as a barrier to intercept sediment-laden water, allowing sediment to settle out while permitting water to flow through, thereby preventing it from washing away valuable topsoil and polluting nearby water bodies. Similarly, sediment traps are designed to capture and retain sediment from runoff, helping to further control erosion.

These methods are proactive measures that directly address the risks associated with soil erosion during construction activities. By implementing such erosion control techniques, construction sites can minimize environmental impacts, comply with regulatory requirements, and promote site stability, ultimately leading to healthier ecosystems and improved site management.

The other options do not adequately address the issue of erosion. Leaving disturbed areas untreated could exacerbate erosion problems, while well-maintained landscaping alone does not provide the necessary protection during active construction. Avoiding any soil disturbance, while ideal, is often impractical on construction sites that require excavation or grading activities. Thus, utilizing silt fencing and sediment traps presents a practical and effective solution for managing erosion during construction.