They helped with social reforms such as race, sex, etc
He was good to his people and helped to keep the economy stable.
Answer:
Some were used for burial mounds , the presence of human remains would reveal that purpose.
Explanation:
Https://www.google.com/search?client=safari&hl=en-us&sxsrf=ALeKk01LppM9urmSHrD5-kwGgn-B1aMYyQ:1588885410711&q=Parkland+Memorial+Hospital&stick=H4sIAAAAAAAAAONgVuLUz9U3MM41MKp8xOjMLfDyxz1hKatJa05eYzTh4grOyC93zSvJLKkUUuNig7JkuHilELo0GKS4uRBcnkWsUgGJRdk5iXkpCr6puflFmYk5Ch75xQWZJYk5APxW4ptwAAAA&biw=414&bih=719&dpr=2
Less than a hundred percent