Which of the following is a method of preventing mass movement?

Revegetation is an effective method of preventing mass movement because it involves planting vegetation in areas susceptible to erosion and landslides. Roots of plants and trees help to stabilize the soil by anchoring it in place, reducing the likelihood of soil erosion and providing a physical barrier against surface runoff. This biological reinforcement can hold soil together, thus minimizing the chances of landslides occurring, especially on slopes.

In contrast, clearing forests removes the stabilizing roots and can lead to increased soil erosion and instability. Increasing slope angles typically makes areas more prone to mass movements, as steeper slopes can trigger landslides due to gravitational forces acting on loose or saturated soils. Building more structures can add weight to the landscape and may disrupt natural drainage patterns, contributing to mass movement rather than preventing it. Therefore, revegetation stands out as a proactive and sustainable approach to mitigating the risk of mass movement.