Which essential urban need was met by this structure, made possible by roman engineering?

reliable communications

clean water

efficient transportation

sufficient food

where is the passage

i cant solve it without knowing the passage

the church governed the society after the empire fell.   constantine took charge of rome and ended the confusion which had over religion and made christianity as the only religion and that started ruling the roman empire. he also divided the empire into two and fortified the eastern part.   he ruled the eastern part.

answer; (c) slaves brought to the americans from africa;

the four most common systems of greek government were: democracy - rule by the people (male citizens). monarchy - rule by an individual who had inherited his role. oligarchy - rule by a select group of individuals.