Harriet Tubman was an African American slave. She first risked her life when she developed the "Underground Railroad", which was a secret system that she created in order to help fugitive slaves escape. The second way that she risked her life was becoming a nurse during the Civil War.
True of gold mine for their country
The correct answer is 5/14
A. Boomtowns because railroads made traveling easier and new farm Machinery made the industry happen easier on faster