Question

1. Which of these was nullified by the Kansas-Nebraska Act?

Answer 1

The Missouri compromise was nullified by the Kansas-Nebraska act. This act allowed the people in each state to determine whether or not slavery would continue within their state.
Abolitionist John Brown was executed because of his attempt to seize the arsenal at Harper's Ferry. John Brown led the Harper's Ferry raid.

Answer 2

1. A) Missouri Compromise--the Missouri Compromise divided the country in half with slavery allowed in the South and no slavery in the North. The Kansas-Nebraska Act called for popular sovereignty or voting on the issue of slavery. 

2. A) for his attempt to seize the arsenal at Harper's Ferry-- John Brown was an extreme abolitionist who wanted to help slaves out of slavery. The raid on Harper's Ferry was the goal of collecting weapons to aid in his abolitionist goals. 

3. D) Citizens who helped a runaway slave could be imprisoned-- The Fugitive Slave Act was passed with the Compromise of 1850 and required all people (Northerners included) to return runaway slaves to their owners. Those aiding or hiding fugitive slaves would face federal theft laws.