Answer:
Please read below
Step-by-step explanation:
The Kansas-Nebraska Act of 1854 repealed the Missouri Compromise, which had barred slavery from territories north of the 36°30' latitude line.
The Kansas-Nebraska Act opened up the possibility for slavery to extend into the territories of Kansas and Nebraska, allowing the settlers there to decide for themselves whether or not to allow it.
This new concept of popular sovereignty was thought to be a way to settle the increasingly volatile issue of slavery in the territories.