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?

(1 point)
Responses

They are found in the upper Midwest of the United States.
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.
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.
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

The mound builders suddenly stopped creating them due to a sudden volcano eruption. This statement is NOT correct. Effigy mounds were not created by the mound builders who suddenly stopped due to a volcano eruption. They were built by various Native American cultures over a span of thousands of years for various purposes.