Man I don’t know but please give me a like and 5 stars
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 :)
He built a huge Mosque and made the city the capitol of the Kingdom of Persia. It's the third biggest city nowadays but at that time was a marvel and people from all over the world traveled there to witness the greatness of the city and in general of the Persian empire.
Answer: D
Explanation: <em>These factors led the Supreme Court to their ultimate ruling that the Fourteenth Amendment protects persons beyond the racial classes of white or black, and extends protection to nationality groups as well</em>
<em />
