Surface processes are natural events that shape the Earth's outer layer. These processes include weathering, erosion, and sedimentation. Weathering breaks down rocks into smaller pieces, while erosion moves these pieces from one place to another, often by wind or water. Sedimentation occurs when these materials settle in new locations, forming layers over time. These processes are essential for creating landscapes and influencing ecosystems. For example, rivers can carve out valleys, while glaciers can create unique landforms. Understanding surface processes helps scientists study the Earth's history and predict future changes, making it crucial for fields like geology and environmental science.