What was a major reason for the federal government’s involvement in
the relocations depicted on this map?

I'm assuming that you are talking about the map of Indian Territory in 1830

To acquire Valuable agricultural land and natural resources such as Tobacco, Mining elements, etc

During the paleolithic, hominins grouped together in small societies such as bands, and subsisted by gathering  plants  and fishing, hunting or scavenging wild  animals. the paleolithic is characterized by the use of knapped stone tools, although at the time humans also used  wood  and bone tools.