Answer:
"During his tenure, U.S. President James K. ... Polk accomplished this through the annexation of Texas in 1845, the negotiation of the Oregon Treaty with Great Britain in 1846, and the conclusion of the Mexican-American War in 1848, which ended with the signing and ratification of the Treaty of Guadalupe-Hidalgo in 1848."
The right answer for the question that is being asked and shown above is that: "rubber." This was a product exported by the Olmec, is closely associated with their name, and lends strength to the argument that they were the <span>originators of the Mesoamerican ballgame</span>
1) fiasco
2) Garrison
3) infiltration
4) rehabilitation
Railroads helped the US grow by making settlement in the West possible after the Civil War by connecting farmers (miners, ranchers, loggers, and others) to markets. there people and companies could both ship their produce to markets as well as ship in the machinery and supplies they needed. It was the only way to move large amounts of things quickly.
