The railroad increased trade by making shipping cheaper.
Opportunity cost indicates what must be given up to obtain something that is desired.
The modern sport evolved from Native American intertribal ball play is lacrosse. It came from the Native Americans called Iroquois who lived in what is now New York, Pennsylvania, and other parts of Northeastern USA. This sport played a significant religious and community role in tribes.
B. China's huge population. <span>The central idea behind the Great Leap was that rapid development of China's agricultural and industrial sectors should take place in parallel. The hope was to industrialize by making use of the massive supply of cheap labor and avoid having to import heavy machinery. </span>
Forbade colonial settlement west of appalachian mountains.