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 :)
Civil Rights act of 1964 and The Voting Rights Ac
t.
<span>Women entered the workforce in much larger numbers than they had in the past.
Hope this helps :)</span>
President is allowed to make treaties, nominate and appoint ambassadors, judges of the supreme court, with the advice and permission of the Senate.
