The united states and brazil are both highly diverse societies. the same individual, though, may be considered black in chicago, but white in são paulo. this suggests that race is not a biological reality but rather a(n):

Social construction

Explanation:

A social construction or construct involves the meaning, concept, or connotation that a society places on an object or event, and is followed by the inhabitants of that society as to how they perceive or interact with the object or event.

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.