Your friend Darius is working on a class project on effigy mounds. He asks you to listen to

Question

Your friend Darius is working on a class project on effigy mounds. He asks you to listen to

his main facts about effigy mounds to see if they are all correct before he presents. Which
one of his facts is NOT correct?
They are found in the upper Midwest of the United States
The earliest effigy mounds created in the shape of animals could be up to 3,000 years old.
It is estimated that up to 20,000 effigy mounds were created just in Wisconsin
The mound builders suddenly stopped creating them due to a sudden volcano eruption

Answer 1

The mound builders suddenly stopped creating them due to a sudden volcano eruption. This fact is NOT correct. The reason for the decline in effigy mound building is believed to be due to changes in social organization, cultural practices, and environmental factors over time, rather than a sudden event like a volcano eruption.