Which of the following actions can help minimize erosion during heavy rainfall?

Implementing sediment traps is a highly effective action for minimizing erosion during heavy rainfall. These structures are designed to capture sediment and reduce the velocity of surface runoff, preventing soil particles from being washed away. Sediment traps can be strategically placed in areas where runoff is expected to occur, allowing them to collect sediment before it leaves the construction site or disturbed area. By filtering water flow and capturing sediments, these traps help stabilize the soil and maintain the integrity of the surrounding environment, especially during heavy rain when erosion risks are heightened.

In contrast, increasing slope steepness, diminishing vegetation cover, and using non-vegetative materials are actions that would likely exacerbate erosion. Steeper slopes can increase the speed of water runoff, leading to greater erosion. Reducing vegetation cover removes protective root structures and plant cover that helps hold soil in place, making it more vulnerable to being washed away. Non-vegetative materials can provide limited erosion control and may not effectively promote soil stability compared to vegetation.