I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

the historians cited in the article all agree with one another about the cause of the civil war. despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the civil war. the fact that all these historiansgenerally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of howard university, clemson university, and the university of colorado.

is there a year set? the question is incomplete

sumerians were polytheistic, meaning they believed in many different gods. so, the best answer is c.