Under the compromise, became the northern boundary for
future slave states.
O the Great Plains
O the Mississippi River
O Missouri's southern boundary
O New Mexico's northern boundary

Missouri's southern Boundary

Explanation:

After the Missouri Compromise was signed by both the CSA and the Union, the law stated that every state that formed underneath Missouri's border was a part of the CSA. It also stated that any state that formed above Missouri's Southern border was a part of the Union. But the Union broke the deal and California became a Union state.

Missouri's southern boundary

Explanation:

Under the compromise,Missouri's southern boundary became the northern boundary for future slave states.

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow

the federal constitution of the united mexican states of 1824 was enacted on october 4 of 1824, after the overthrow of the mexican empire of agustin de iturbide. in the new constitution, the republic took the name of of united mexican states. it was replaced by the federal constitution of the united mexican states in 1857.