What specifically did the union not want to be shipped out of the south in the civil war​

Explanation:

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During the Civil War, the Union attempted to blockade the southern states. A blockade meant that they tried to prevent any goods, troops, and weapons from entering the southern states. By doing this, the Union thought they could cause the economy of the Confederate States to collapse.

the answer is 1.. i think

just finished this it is b. centrifugal force