Answer:
Step-by-step explanation:
The Kansas-Nebraska Act of 1854 divided the country by intensifying the existing tensions over slavery. The act repealed the Missouri Compromise of 1820, which had prohibited slavery in certain territories, and instead allowed the residents of the Kansas and Nebraska territories to decide for themselves whether to allow slavery (popular sovereignty). This led to a fierce and violent struggle between pro-slavery and anti-slavery factions, as both sides sought to influence the outcome.
The act's passage further deepened the divide between the North and the South, fueling the growing animosity that eventually led to the American Civil War.
hope it helps!