What type of erosion is directly caused by the impact of raindrops on unprotected soils?

The type of erosion caused directly by the impact of raindrops on unprotected soils is known as splash erosion. This process occurs when falling raindrops hit the soil surface with sufficient force to dislodge soil particles, which can then be displaced horizontally and vertically. Splash erosion is particularly significant in areas where soil is bare, as the direct impact of the rain can lead to significant particle detachment, making the soil more susceptible to further erosion.

In contrast, hydraulic erosion typically refers to the movement of soil and sediment caused by flowing water, while wind erosion involves the action of wind in transporting loose particles, particularly in arid or open areas. Sheet erosion refers to the uniform removal of a thin layer of soil across a large area, usually due to overland flow during rainfall events. Each type of erosion plays a role in landscape alteration, but splash erosion specifically highlights the immediate impact of raindrops on the soil surface.