Oceans

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

More Questions from Oceans
What is the smallest sailboat listed?
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Blue whales have an extremely loud call, approximately how loud measured in decibels?
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Oceanic trench means what as it relates to the environment?
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What do ship captains use to help them know when it is safe to dock at the ocean's edge?
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What ocean did Ferdinand Magellan name?
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Which two oceans surround North America?
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Whale milk has a high fat content. Approximately what percentage to volume in fat does whale milk contain?
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What is the area in the ocean that can never be touched by sunlight called?
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