in the second paragraph of Article II, Section 2, that <u><em>“the President shall have Power, by and with the Advice and Consent of the Senate to make Treaties, provided two thirds of the Senators present concur.”</em></u> Thus, treaty making is a <u><em>power shared between the President and the Senate.</em></u>
<u><em>Source: https://constitutioncenter.org/interactive-constitution/articles/article-ii</em></u>
The highly profitable crop, well I think it was tobacco had a test on this so That's what I think, Hope this helped. :3
An amendment or ratification to the constitution.