What advances were to be found in cities by the turn of the twentieth century?

Question

Quizplus · Accepted Answer

All of the options were advances that could be found in cities by the turn of the twentieth century. Public water and sewer systems improved sanitation and overall health, external electric lighting made the city safer and more convenient, trams and underground railways improved transportation, and large police forces helped maintain order in the growing and increasingly complex urban environment.

What Advances Were to Be Found in Cities by the Turn