They reduce the time (by making it faster) and reduce the cost of trading (by making it efficient).
Answer:
Ulysses S. Grant was an American soldier and politician who served as the 18th president of the United States from 1869 to 1877. Before his presidency, Grant led the Union Army as Commanding General of the United States Army in winning the American Civil War.
Explanation:
That is all i know about Ulysses grant . hope it helps u ;]
Answer:
I think the correct answer is A. Slavery became more entrenched in southern states.
The answer is b because the empire made an advance