Answer:
Economic and social differences between the North and the South.
States versus federal rights.
The fight between Slave and Non-Slave State Proponents.
Explanation:
Himalaya's: Isolated China.and gave protection, and water, and minerals.
Trading : As far as I know from when the silk road started ( but this could be wrong)
<em>POPULAR EXPORTS : </em> Jade, Silk, Paper, Porcelain.
<em>Popular Imports : </em>Spices, Glass, AND ALSO : Buddhism ( from india)
A if I am correct please correct me if I am wrong
