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

the state sent equipment and money to the soldiers.
the state sent guns and ammunition to the soldiers.
plantations sent horses and water to the soldiers.
plantations sent meat and salt to the soldiers.

Plantations sent meat and salt to the soldiers.

Explanation:

This was the reason why Florida was known as the "supplier of the Confederacy." During the Civil War, the Confederate Army needed large amounts of food in order to ensure the survival and strength of the soldiers. Florida did its part by supplying meat and salt to the troops. These were essential elements that allowed the Confederacy to continue fighting.

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