i don't understand what you're saying
Answer:
Railroads improved the movement of people from one area to the other
Observation balloons gathered information about the enemy and communicated it back to the officers
Explanation:
i took the test.
i think its the First answer
Answer: 10 million Africans had been sold by the 1800s, about into slavery in the Americas.
Answer:
provided logical reasons for american independence
