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 :)
It would be total chaos!! No one in a civilised society can be be “judge and jury”. There has to be a separate system for each .
Its definately C cuz w<span>hen Congress passes a law, it sets down guidelines to carry out the new policies.</span>
Answer:
Life, Liberty, and the Pursuit of Happiness.
Explanation:
:)
