Water Erosion
When rain falls to the Earth it can evaporate, sink into the ground, or flow over the land as Runoff. When it flows over land, erosion occurs. Runoff picks up pieces of rock and "runs" downhill cutting tiny grooves (called rills) into the land.
How much erosion takes place is determined by the:
How much erosion takes place is determined by the:
- Sum (amount of water)
- Slope
- Speed
- Surface