What is an aqueduct primarily used for?

An aqueduct is primarily used for transporting large quantities of water from one location to another. This engineering structure can convey water over long distances, which is particularly useful for supplying urban areas, agricultural regions, or areas with limited water resources. Historically, aqueducts have played a crucial role in the development of civilizations by enabling the distribution of water for drinking, irrigation, and other essential uses. The design of an aqueduct allows it to efficiently move water, often incorporating features such as bridges, tunnels, and canals to navigate varied terrains.

The other options focus on different water management techniques. Collecting rainfall for irrigation is typically accomplished through systems like rainwater harvesting, not aqueducts. Cooling water in industrial processes refers to methods for heat exchange and does not relate to the water transport function of aqueducts. Storing groundwater for drought periods is usually managed through reservoirs or groundwater recharge systems rather than aqueducts, which are designed specifically for transportation.