Explain how america gradually began to respond to the threat from totalitarian aggression while still trying to stay neutral

Lend-Lease

Explanation:

Prior to World War II, the United States had an official policy of neutrality. Members of the Roosevelt administration circumvented this by developing an act by which the future allies could purchase goods as favorable rates.

answer; ///the (iroquois) cultures was made up of several groups, who spoke a common language

no , per capita income is not a true measure of the development because: -it only tells us about average income not how income is distributed among the people.it only give us an idea of the economic aspect.it is only at the qualitative basis.moreover, income is not only the way of development other factors are also as much as important as income.