What role did most americans in the 1920's think that the united states should take in world affairs?

Which would be good historical evidence when studying manifest destiny?

What is the tallest mountain range in south america? a guiana highlands b the patagonia mountians c the andes mountians d brazilian mountains

One drawback of voluntary trade is that it a.requires two groups to use a common language b.can make one group dependent upon another for necessary goods c.doesn't occur unless there is a shortage of goods for at least one group d.forces groups to rely on themselves to produce all the goods they need