Why was expansion a cause of the civil war

Ineed your asap, it due select the items that were included in the terms of the 1848 treaty of guadalupe-hidalgo (which ended the mexican-american war). question 6 options: the united states gains the new states of missouri, nebraska, kansas, and iowa. the united states paid mexico $15 million dollars for land obtained as a result of the end of the war the united states demanded a permanent military presence in mexico. the united states gains territory in present-day california, new mexico, arizona, utah, nevada, and parts of colorado and wyoming.