<span>What questions about postwar Europe did the allies face</span>
The growing of corn enabled the native Americans to have a much more reliable food source that was produced in large quantities and they also had reserves for bad times. This allowed the populations to grow significantly, and also larger cities to be built and developed. It also contributed that the people in this part of the world to have more time to focus on other things, like sciences, astronomy, architecture, instead of just living day by day and be in a constant search of food.
"The Indian Reorganization Act improved the political, economic, and social conditions of American Indians in a number of ways: privatization was terminated; some of the land taken was returned and new land could be purchased with federal funds; a policy of tribal self-government was implemented; tribes were allowed to incorporate businesses and credit established to further such business; and education & employment opportunities were greatly enhanced"
Hope this helped :)