sediment

Sediment refers to tiny particles of rock, mineral, organic material, and other debris that settle out of water, air, or other fluids. These particles often originate from the weathering and erosion of larger rocks or biological activity. When transported by water, wind, or ice, they can accumulate in layers, forming deposits such as riverbeds, lake bottoms, or ocean floors. Sediment plays a vital role in shaping landscapes, creating fertile soil, and forming geological features like sedimentary rock through pressure and cementation over time.