Florida was best known as the "supplier of the confederacy" because

Due to its geographical location, there was actually very little fighting in the territory that belonged to the state of Florida. As the major battles were fought in the northern state of Tenessee and Virginia. On the other hand, because of its favorable weather for agriculture, Florida was a main supplier of goods to the Confederacy troops. This became increasingly important throughout the war, as the naval blockade executed by the Union, prevented the southern states to get sources easily.

plantations sent meat and salt to the soldiers.

Explanation:

google it

explanation:

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.