<span>the best option is B
the development of more efficient agriculture
The emergence of efficient forms of agriculture especially in Mesopotamia, led to emergence of early city states as food was produced in surplus to feed the town population. it also led to division of labor. this form of agriculture also contributed to sedentary lifestyle and improved nutrition thus explosive population that contributed to city establishments.
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Answer:
Explanation:
Of course there are a ton of event leading into the Civil War but I will give you the most important ones based on my opinion
1)When Abraham Lincoln got nominated for president
Since Abraham Lincoln wanted to end slavery South Carolina seceded immediately
2)The Compromise of 1850
When the Fugitive Slave Law was passed saying all slaves shall return to the south the north disagree
3)Uncle Tom's Cabin
When Uncle Tom's Cabin was published by Harriet Beecher Stowe the North was horrified of how the South treated the slaves the South had to ban this book
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The short answer is no, changes in the young nation did not open the door to opportunity for all Americans, since a large number of people in the United States during this time, such as slaves and women, had practically no rights.
North Korean leaders believed that the United States wouldn't intervene.