<u><em>Many were displeased, which increased tensions over slavery. </em></u>
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We went back to "Undisturbed Isolationism". We cut ourselves off diplomatically for the most part from many European powers out of fear of being brought into another World War. America was completely and only about America.
The second one. Hope this helps
It’s d because it’s taking about physical features
The wealth of Nations was the groundbreaking work by Adam Smith laying the foundation for the Modern science of econmics.