What are the two major rivers of northern Indian

Ganga River 2525 km and Indus River 2900 km

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

that would be the steamboat because none of the other things are forms of transportation