Answer:
Other than to succeed to the presidency upon the death or resignation of a president, a vice president's only constitutional duty is to preside over the Senate. Vice presidents cannot vote in the Senate, except to break a tie, nor may they formally address the Senate, except with the senators' permission.
Explanation:
It was created to protect ad help former slaves after the war.
Answer:
A (As far as my knowledge goes, I might be wrong)
Explanation:
A. Trade was increased, so this is the right answer
B. The European Christians did not win the Holy Land from the Muslims, so this is the wrong answer
C. Although art and music was inspired by the Crusades, it's subjective, and I'm assuming this isn't multiple choice.
D. The crusades was a fight over religion, this isn't even possible
The correct answer is atomic bombs.