The diagrams below show how people supply water to a city using Roman Aqueduct and Modern Syphon. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagrams illustrate how water is transported from a reservoir to a city using two different systems: the Roman aqueduct and the modern syphon system. Overall, both systems serve the same purpose — delivering water from a reservoir to urban areas — but the modern system involves an additional treatment step and a different method […]