Water from rain and snow tat travels to streams
Answer:
im pretty sure its: end of Britian's empire in America
Well the Mongol conquests united large portions of land that had previously not been together. As well, the Mongols facilitated a lot of trade by introducing things from all over the empire. For example, they brought a lot of Middle Eastern scientists and artists into the Middle East, which promoted the exchange of culture.
While it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for enslaved labor to grow and pick the cotton. In fact, the opposite occurred. Cotton growing became so profitable for enslavers that it greatly increased their demand for both land and enslaved labor.