Final answer:
Cuba is a large island nation located about 90 miles off the coast of Florida. It is known for its colonial history, transition to plantation agriculture, and socialist revolution. The island is surrounded by the pristine waters of the Caribbean, making it a popular tourist destination.
Step-by-step explanation:
The large island nation about 90 miles off the coast of Florida is Cuba. Cuba is the largest island in the Greater Antilles and is slightly smaller in size than the US state of Pennsylvania. It is known for its colonial history, transition to plantation agriculture, and socialist revolution. The island is surrounded by the pristine waters of the Caribbean, making it an attractive tourist location.