A qanat is an ancient underground water management system used primarily in arid regions. It consists of a series of tunnels and wells that transport groundwater from a source, such as a mountain or aquifer, to the surface for irrigation and drinking. This method helps conserve water and reduces evaporation, making it essential for agriculture in dry climates. The construction of qanats dates back thousands of years, with origins in ancient Persia. They are still in use today in various countries, including Iran, Afghanistan, and Tunisia, showcasing their importance in sustainable water management and agricultural practices.