Answer:
Slavery played an important role to create tension between north and south state of america and leads this tension to civil war.
Explanation:
In 1861, tensions between northern and southern states creates on the issues of slavery, states' rights and westward expansion. Due to these reasons, civil war occurs but the main cause of civil war was the slavery. The northern state was against of slavery while the southern states of america was in favor of slavery. Due to difference in the concepts and ideology, tension creates which leads to civil war.
China demonstrated its willingness to open talks with the United States by "<span>B. opening trade with American companies," since this was believed to be in the best interests of both China and the US. </span>
They brought horses. It was easier for them to catch up with the buffalo and hunt instead of having to throw weapons from a far and run after the Buffalo.
What's the context?
The industrial revolution
Even further back...
The agricultural revolution
Trade?
Communication?
Travel?
Exploration?
The geography of the land
