Have you ever visited the Grand Canyon? That massive hole in the ground is the result of millions of years of erosion — water washing away layer after layer of rock until an enormous canyon formed. This landform is a dramatic example of erosion. On a smaller scale, substances like soil are also susceptible to erosion.
Soil erosion can be problematic. Without nutrient-rich topsoil, we have nowhere to plant our crops, meaning the human race could potentially starve. What causes soil erosion, and what technologies could prevent it?