The primary role of rivers in shaping landscapes is through a process called erosion and sediment transport. Rivers carve valleys, shape terrains, and influence ecosystems by redistributing nutrients. The flow of water sculpts landforms, creating habitats for diverse flora and fauna. Additionally, rivers act as natural boundaries and corridors for wildlife movement. They also play a crucial role in the hydrological cycle and water quality, impacting both terrestrial and aquatic systems. Understanding river dynamics is essential for managing resources and preserving environmental integrity.