What did the claiming countries of America understand? 1.To hold the land, they needed to set up trading posts.
2.To hold the land, they needed to send settlers.
3.To hold the land, they needed to set up forts.

I need help fast pleas

North understand that Slavery was not right when South still wanted slavery Because  that didn’t have to do work and that were lazy so they had non whites do their work not just Africans

Explanation:

d.

the northwest territory became the most densely populated area in the u.s.

equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.