Peoples of the USA - Native Americans

http://ndla.no/en/node/6203?fag=42&meny=264162

Comprehension

1. About what percentage of the Native Indian population lives on reservations? Where are the majority of these reservations located?
   -  Almost half of the Native Americans live on federal reservations. The majority of the reservations are situated west of the Mississippi River. 
2. What are some of the social challenges faced by Native Americans? List what you believe can be the possible causes of these challenges.
   - Some of the social challenges faced by Native Americans are unemployment, poverty, alcoholism and drug abuse, high rates of diabetes and heart disease. I think that the possible causes of these challenges can be bad living conditions, the oppression and poverty.