The question is asking to state or describe how both groups used land, and how their ways of life conflicted, and base on my research, I think the best way to explain it is that they have conflict on their interest of the resources found on each land of the Great Plains. I hope this would help
The abortion rate<em> </em><em><u>60%</u></em><em> </em>during the 1970s, and has <em><u>declined</u></em> since 1980.