WORLD HISTORY

Detailed explanation-1: -An aqueduct is a watercourse constructed to carry water from a source to a distribution point far away. In modern engineering, the term aqueduct is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose.

Detailed explanation-2: -Aqueducts (or water bridges) are bridges constructed to convey watercourses across gaps such as valleys or ravines. The term aqueduct may also be used to refer to the entire watercourse, as well as the bridge.

Detailed explanation-3: -Viaducts are a bridge-like structures that are typically made up of arches that carry road or rail traffic across a valley or other low ground. The difference between these two is that an aqueduct is a bridge for water and a viaduct is a bridge for road or railway.