An aristocracy, middle class, and slaves are examples of what kind of structure?

Social structure

Explanation:

An aristocracy, middle class, and slaves are examples of a social structure. A social structure is a pattern of organization that helps people in a society interact with one another. Social structures determine how we interact with others, live together, work, marry, build friendships, etc. In this case, these three levels represent different social groups that are present in many social structures.

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

explanation: