Answer:
this answers may help you
Diseases introduced by the Columbian Exchange caused a sharp decline in population levels in the Americas beginning in the 15th century. The correct option among all the options given in the question is option "C". The natives never faced the diseases that attacked them and so they did not have any cure for them. <span />
Answer:
They were both wars that contained nearly every country in the world fighting on a large scale.
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