Answer: he Missouri Compromise was struck down as unconstitutional, and slavery and anti-slavery proponents rushed into the territory to vote in favor or against the practice. The rush, effectively led to massacre known as Bleeding Kansas and propelled itself into the very real beginnings of the American Civil War.
Explanation: In an attempt to prevent a civil war, Congress enacted a series of laws that became known as the Compromise of 1850. These included an enhanced Fugitive Slave Law. This law required law enforcement officials throughout the country to aid in the arrest of alleged runaway slaves.
The answer for this would be B and C
Washington Gladden's ideas would most closely be tied to the period in U.S. history that begins just after the Civil War and leads into Reconstruction.
Haber Process, Born-Haber Cycle, Fertilizer, explosive material, chemical warfare,etc.
