Answer:
The answer should be: Companies replaced hand-operated brakes with air brakes on trains.
Explanation:
You have to think how hard it was for trains to stop with hand operated brakes. Trains go fast, and not stopping in time can be dangerous. Hope this helped :)
I believe its A. But im not sure all the way :)
Most if then where for slavery but a few where against it
Answer:
Josiah Spiers spoke to 15 children in a drawing room in Islington, London, and began the work of sharing the Christian message with children in a way that related to their real needs.
Explanation:
