Is the statement true or false? Runoff is usually more likely from water-saturated soil than from unsaturated soil.

The statement is true because when soil becomes saturated with water, it reaches a point where it can no longer absorb additional moisture. At this point, any additional water that enters the soil will start to flow over the surface, leading to runoff. Saturated soil conditions occur when the pores between soil particles are filled with water, making it difficult for more water to infiltrate. This is in contrast to unsaturated soil, which has the capacity to absorb more water, thereby reducing the likelihood of runoff. Therefore, in saturated conditions, the risk of runoff increases significantly, particularly during heavy rainfall events.