Oceans

In the 1970's, a large and failed expansion to Florida's Osborne Reef was comprised mostly of what?

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Who was the manufacturer of the World's first outboard engine?
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What is the largest animal in the ocean?
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Relating to the environment, what does Operational oceanography mean?
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How many chambers do the hearts of sperm whales have?
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What type of cnidarian makes up an underwater reef?
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Which of these oceans is the deepest?
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What is the largest island in the Indian Ocean?
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A large number of islands referred to collectively is a what?
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