Cloud seeding is a weather modification technique that aims to enhance precipitation, such as rain or snow. It involves dispersing substances like silver iodide or sodium chloride into the atmosphere, which act as nuclei for water droplets to form around. When these droplets grow large enough, they fall to the ground as precipitation. This process is often used in areas experiencing drought or to increase water supply for agriculture. While cloud seeding can help improve rainfall, its effectiveness can vary based on atmospheric conditions and is not guaranteed to produce significant results.