<span>The columbian exchange was based on interactions between the old world and the "New World," since it involved the exchange of goods, ideas, etc between places like the Americas and Europe. </span>
The battle of Marathon took place on 490 BC in Athens Greece.
Hope I helped!
- Debbie
<span>The constitution provides that the president has the power to approve a treaty, it was from Article 2,Section 2.
Sources:U.S. Senate:Treaties</span>
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is this a question or True or False?
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