Cultural exchange and the change in global population are the immediate consequences of the columbian exchange. Proliferation of invasive species and some communicable diseases are the most important byproducts of the columbian exchange.
secondary sources are: books, newspapers, pamphlets and encyclopaedias. Secondary sources involve generalization, analysis, synthesis, interpretation, or evaluation of the original information so i would say D. a series of correspondence between former United States presidents Thomas Jefferson and John Adams
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there is democracy and human rights
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The answer is Ahkenaton, hope this helps you :)
By the bombing of Tokyo, you mean the Doolittle raid then yes, It was a much-needed morale booster.