How did Europeans decide where to put the borders of their colonies? They used Africa’s natural features such as rivers. B They divided Africa to meet their own resource needs. C They asked Africans to identify their cultural borders. D They researched the borders of ancient African empires.

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

d) a week

because the land run of 1889, although not without precedent in the history of the west, further, their men were aboard the first trains, ready to jump off and begin staking their claims. oklahoma city, edmond, and guthrie were all so affected.

the constitution gives congress the power to regulate commerce "among" the several states.