The spread of Buddhism into China was most likely I believe the result of trading relationships.
I hope this helps you! :)
The invention of agriculture helped to meet the nutritional needs of people easier which helped them live longer. This also caused the people who moved around to settle down in one area to farm.
These were products native to the region
Americans were convinced that expansion would boost trade with the Latin America region, help spread democracy and civilization as well as expand the territories.
America increasingly supported expansionism in the late 1800's mainly becasue of the influence of the manifest destiny. In addition, the fashion around at the time was centered around territorial expansions and therefore some Americans felt USA should not be left out. Americans were convinced that expansion would boost trade with the Latin America region, help spread democracy and civilization.