Final answer:
An aqueduct in ancient Rome was a raised channel used to carry water from its source to the city. The Romans built aqueducts to supply Rome and other cities with clean water. They were often carried on arched bridges or used channels in the ground or tunnels when possible.
Step-by-step explanation:
An aqueduct in ancient Rome was a raised channel for carrying water from its source in springs or rivers to the city. The Romans built aqueducts to supply Rome and other large cities with clean water. The aqueducts were often carried on arched bridges, but the Romans also used channels in the ground or tunnels for water transport whenever possible.