Which industry did John Cocoris help develop in Tarpon Springs, Florida, in the early 1900s? Cotton harvesting
Phosphate mining
Railroad construction
Sponge harvesting

Sponge harvesting

Explanation: In 1905, he introduced sponge diving to the area and recruited Greek sponge divers from the Dodecanese Islands. By the 1930s, the sponge industry of Tarpon Springs was very productive, generating millions of dollars a year.

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