It allowed the Union to repel the Confederate invasion of the North.
Many farms were auctioned off when farmers
a. began to irrigate crops.
b. could not pay their mortgages.
c. combined households to save money.
d. destroyed crops to protest low prices.
Your answer: b. could not pay their mortgages.
Few black or white Americans were prepared to join a rebellion led by a fanatical abolitionist.
No, the vast distances that existed between civilizations and the physical terrain (mountainous) that separated them were too great for humans to cross. Journeys and trade routes would have taken years to cross. Horses shortened these travels times and made journeys more survivable, as such the people were able to expand.
D. The spread of the Christian Religion after Constantine converted to it