Lime is a versatile material primarily made from calcium oxide (CaO), which is produced by heating limestone (calcium carbonate) in a process called calcination. This process releases carbon dioxide and leaves behind quicklime. Lime is widely used in construction, agriculture, and various industrial processes due to its ability to react with water and carbon dioxide, forming calcium hydroxide and calcium carbonate, respectively. In construction, lime is often used in mortars and plasters, providing durability and flexibility. In agriculture, it helps to improve soil quality by neutralizing acidity and supplying essential nutrients. Additionally, lime plays a crucial role in water treatment and environmental applications, such as reducing pollution and stabilizing waste.