The island of , by 1840, was the world's largest producer of sugarcane.

 Cuba

Explanation:

By mid 19th century Cuba succeed more than other Caribbean islands in sugar production because of its geography (plain terraines perfect for crops) and they also had better harvesting methods including steam engines, watermills, vacuum pans and enclosed furnaces, so production was high. Slavery stayed longer in Cuba compared to other Caribbean islands, which also contributed to their success.

- tobacco.

- "rolfe reacted to consumer demand by importing seed from the west indies and cultivating the plant in the jamestown colony. those tobacco seeds became the seeds of a huge economic empire.the tobacco economy rapidly began to shape the society and development of the colony. growing tobacco takes its toil on the soil."

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it would be that mali has the worst literacy rate than the others