A reason why the Civil War lasted four years is that the Union had to fully conquer the South.
I'm not 100% sure this is the answer but I know they were successful in math.
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‘Precious Metals
he discovery of large quantities of gold and silver in the New World made precious metals a key export from New Spain. This changed the history of the world economy. For instance, when precious metals entered Spain, this inflow drove up the Spanish price level and caused a balance of payments deficit.
Answer:
E
Explanation:
They were all motives for Spanish exploration.
This may be incorrect because I was in a rush and could not think clearly so I am sorry if it is wrong. I hope this helps though.