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Jefferson Davis, a former U.S. Senator and Secretary of War, was elected President of the Confederate States of America by the members of the Confederate constitutional convention. After four bloody years of conflict, the United States defeated the Confederate States.
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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 :)
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cause the president died or got impeached,and might have got charged for misdeeds.if the vice cannot serve the speaker of the house will have to be president.hope you have a good day!
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monopoly
The term monopoly is often used to describe an entity that has total or near-total control of a market.