The four main Native American culture groups of Poverty Point, ...

[ssal]

The four main Native American culture groups of Poverty Point, Mississippian, Hopewell, and Adena are collectively known as _______ _____ civilizations. Historically, they were located in the eastern half of the United States.
 Fill in the blank(s) with correct word

Question 2

The ______ _______ is the common name used to refer to an eight-year drought during the 1930s that ruined crops and livelihoods causing mass migrations from Oklahoma and surrounding areas.
 Fill in the blank(s) with correct word

[mcabuhat]

Answer to Question 1

Mound Builder

Answer to Question 2

Dust Bowl