AgI, or silver iodide, is a chemical compound made up of silver and iodine. It appears as a yellowish solid and is primarily used in photography, as it is sensitive to light. When exposed to light, AgI undergoes a chemical change, making it useful in developing photographic films. In addition to photography, AgI is also used in cloud seeding, a process that aims to enhance precipitation. By dispersing AgI into clouds, it can encourage the formation of raindrops, potentially increasing rainfall in certain areas. This application is particularly valuable in agriculture and water resource management.