Why did Indian removal have a negative economic impact on the American Indian tribes that were relocated to Oklahoma?

Due to lost of their property.

Explanation:

The Indian removal act has a negative economic impact on the American Indian tribes that were relocated to  Oklahoma because they lost all their property that was present at their original place. They have to start their lives from the beginning and lives according to the available resources of that Oklahoma location. They were not paid for their property by the American government which leads to bad economic condition.

russia because it is the biggest state