Question

in the dred scott decision, the supreme court also ruled that the federal government could not pass laws that banned slavery in any of the western territories. with this ruling, which of the following laws or compromises would be considered illegal?
the fugitive slave act, which forced northerners to help recapture escaped enslaved people
the three-fifths compromise, which gave southern states more political power because of their enslaved population
the missouri compromise, which declared any territories above a certain geographic line to be free territories
the treaty of guadalupe hidalgo, which ended the war between the united states and mexico

Explanation:

The Dred Scott ruling stated the federal government could not ban slavery in western territories. The Missouri Compromise created a geographic line banning slavery in northern western territories, directly conflicting with this ruling. The other options either enforced slavery, counted enslaved people for representation, or ended a war, none of which restricted slavery in western territories.

Answer:

the Missouri Compromise, which declared any territories above a certain geographic line to be free territories