Congress passed this act to send the remaining Indian tribes to the unsettled western territories. The reason why this act was passed was probably so that the land in the existing borders could be used.
I think it would be the diversification of races and culture that the United States have today. Immigration have changed and shifted United States in politics, economics, social and culture that enables the US to be what it is today. Diversification plays a significant role in the US because it shifted the policies of the country and it makes the country more flexible and achieve a level of prosperity and progress in all aspects.
Answer:
Support the app and say it's the greatest app in the world
That should be the Darling River so B.