Final answer:
Rainwater causes erosion through splash and sheet erosion, where raindrops hitting the ground displace soil particles, and accumulating water flows over the surface, removing the top soil layer.
Step-by-step explanation:
How does rainwater cause erosion on the ground? The correct answer to this multiple-choice question is b) Rain causes splash erosion as the drop hits the ground and flows over it, causing sheet erosion. When raindrops hit the bare ground, they cause tiny particles to bounce and move - a process known as splash erosion.
As more rainwater accumulates on the ground, it can join together to form thin layers of water that flow over the surface. This process, where water moves over the soil and removes the top layer, is referred to as sheet erosion. Over time, this can result in significant changes to the landscape as layers of soil are systematically worn away.