B. Manifest destiny would be the answer
The two inventors that contributed to the rise of the railroad industry was Andrew Carnegie and Thomas Edison. The correct answer is A.
- Able to develop their own cultures
- ended feudalism
- many rulers were generous to the poor
- encourages patriotism
- supported arts and sciences
- preserved knowledge
Answer: The military uses many tool and weapons for it example they use the planes to drop bombs and deliver weapons. ships go across the ocean to give food to the soldiers and they u ships for their fights. They use subs for blockade running as a part of nuclear shriek.
I hope this helps a little
Explanation: