The relationship between soil erosion and water quality is closely linked, as erosion can lead to increased sedimentation in water bodies. When soil is eroded, it can carry nutrients and contaminants into rivers and lakes, degrading their quality. This runoff can cause eutrophication, leading to oxygen depletion and damaging aquatic life. Furthermore, sedimentation can affect the clarity of water, impacting photosynthesis in aquatic plants. Maintaining healthy soil is thus crucial for protecting water quality and ensuring the sustainability of aquatic ecosystems.