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 />
They are both democracies. The United States is based off of ancient Rome. The United States however simplified lots of complicated things from the Roman government.
Northerners believed that abolition was the way to go because they thought people should not be treated like property and toil like slaves. All people were equal in their eyes, so they decided to treat people like that, especially Quakers and abolitionists.
Southerners, while there may have some abolition supporters (possibly), thought differently. They believed abolitionists were trying to take their sources of hard labor in the South: slaves. Southern slave masters wanted slaves to work for almost no pay and do the work they didn't want to do, so aboiliton was NOT something they really liked...
Pursing a dangerous policy to the limits of of saftey before stopping. Cuban Missile Crisis
