Agriculture Industry science technology military
Answer:
The railroad was the mean of transport to new settlers going to the Great Plains in the west who sent crops and grain to cities in the East.
Explanation:
The railroads impacted the migration to the west and helped expanded the country while exchanging crops and grain to the more populated cities stablished in the east.
7/12 of this region is shaded.
There is no real way to tell how many have lived on earth and died because there was no way to keep track of people alive back then as there is today
The creation of the GI bill and the Marshall plan for the nations.<span />
