Why did some Northerners in Congress disapprove of the Kansas-Nebraska Act? It could allow slavery to exist in Northern territories. It could force all Northern states to accept slavery. It did not allow for the expansion of the transcontinental railroad. It did not allow the people to decide the slavery issue for themselves.

The correct answer is:

It could allow slavery to exist in Northern territories.

Explanation:

Stephen A Douglas, a senator of Illinois in order to organize the territories of Nebraska passed "The Kansas-Nebraska Act" in 1854.

His main aim was to set up a railroad that will cut through from Chicago to San Francisco, and passing through Kansas and Nebraska.

This Kansas-Nebraska Act of May 30th, 1854, created the territories of Kansas and Nebraska and opened new lands.

Some Northerners in Congress opposed and rejected the Kansas-Nebraska Act having the fear that it would allow slavery in Northern territories. However, Douglas explained this issue by stating that let the people settling in those territories determine if they would allow slavery within their boundaries.  

- "the past is made of multitudinous items ranging from anything that can be collected, recollected or assessed to originate in the past. as such, the past is a gallimaufry of particulars that may not have been related in any way. however, the human mind seeks organization to understand concepts and other things. the human mind therefore seeks relationships in explaining and studying the past. history being a humanity, dictates that historians have to serve this human trait by bringing structure to details of the past. historians do this by creating interpretive frameworks that capture as many details as possible."

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a.tensions between the colonial elites and the backcountry men of virginia.