The correct answer is letter D. Social Security is applied to all wages up to $106,800. Medicare, on the other hand, is applied to all wages without limit. That is the relationship between Social Security and Medicare.
Columbus's voyage will start the Columbian Exchange. This was a an exchange of fruits, vegetables, plants, and animals. Natives became introduced to many things that were not native to the Americas. Natives will be taken and sold into slavery and almost completely wiped out due to European diseases.
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giving speeches, posting big-character posters , and harassment of people, such as intellects. I have no idea what this is this is from wikipedia sorry if its it's wrong.
1. is tres, since he was the third president of the united states
