Questions: Congress was not allowed to ban slavery in the territories. African Americans were not allowed to become US citizens. Northerners feared that slavery would become legal across the nation.

The answers are:

• Congress was not allowed to ban slavery in the territories.
• African Americans were not allowed to become US citizens.
• Northerners feared that slavery would become legal across the nation.

This is correct. The Dred Scott decision, delivered by the Supreme Court in 1857, ruled that Congress did not have the authority to prohibit slavery in the federal territories. This decision effectively nullified the Missouri Compromise, which had restricted slavery in certain territories.

This is correct. The Supreme Court ruled that African Americans, whether enslaved or free, could not be considered American citizens and therefore had no right to sue in federal court. This decision denied African Americans the rights and privileges of citizenship.

This is correct. The Dred Scott decision heightened fears among Northerners that the ruling could lead to the expansion of slavery throughout the United States, even in states where it had been previously outlawed. This fear contributed to the growing tensions between the North and South, which eventually led to the Civil War.