Geosynthetics are synthetic materials used in civil engineering and construction to improve soil stability and manage water. They come in various forms, such as geotextiles, geomembranes, and geogrids, each serving specific purposes like drainage, reinforcement, or separation. These materials help reduce erosion, control sediment, and enhance the durability of structures. By incorporating geosynthetics into projects, engineers can create more efficient and sustainable solutions. For example, using geotextiles in road construction can prevent soil mixing and improve load distribution. Overall, geosynthetics play a crucial role in modern infrastructure development, making it safer and more environmentally friendly.