According to the map, in 1870, which country was more densely populated-the Northeast or the Southeast?

By looking at the maps of the United State where it is shown the distribution of the population in 1870 it is possible to see that in general both areas, the Northeast and the Southeast, show a significantly higher population density than the population density found in the West and the Midwest.  With areas of population densities of 90 and over inhabitants per square mile in the Northeast and  Southeast,  contrasting with areas of population densities under 2 inhabitants per square mile in the east.  

However, since according to the same map described above The mean center of population for the United States was located in southern Ohio, it could be possible to state that in 1870 the Northeast was more densely populated than the Southeast.

Explanation:i hope it helps

food chain i would say only because there is competition on getting food and survival

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.