Exogenous processes are natural events that originate outside a system and influence its development. In geology, these processes include weathering, erosion, and sedimentation, which shape landscapes over time. They are driven by external forces such as wind, water, and ice, impacting the Earth's surface and creating various landforms. These processes contrast with endogenic processes, which occur within the Earth, like volcanic activity and tectonic movements. Understanding exogenous processes is crucial for fields like environmental science and geography, as they help explain how ecosystems and landforms evolve in response to external environmental factors.