Mann's book describes several ancient civilizations of the Americas, including the ancient Beni of Bolivia. Today this ancient civilization is gone, although archaeologists are studying remaining evidence of its existence. What is this evidence?

The Savannah have scores or hundreds of high, forested mounds where the soil is literally thick with pottery fragments, you dig six inches and the soil is half ceramics to some archaeologist this suggest multiple reoccupation by small groups of people

Explanation:

In this view the mounds are based on natural formations or were built up more or less by accidents. to others this seems ridiculous- the mounds were of course deliberately constructed, they say. And that will take many people. in both cases how scientist look at the evidence is deeply influenced by their view on larger issues like the role on ecological limits and their ideas on what human kind is like.

answer; the civil right act of 1964;