Oceans
What did early ocean scientists use to measure the distance to the ocean floor?
More Questions from Oceans
The average adult blue whale's heart weighs approximately how many pounds?
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The three types of ice that cover the Arctic Ocean are polar ice, fast ice and what?
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Mar del Plata is an Argentine city on the coast of what ocean?
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What nutrient found in fish is thought to be good for both your heart and your brain?
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The world's largest hypoxic "dead zone" is located in what body of water?
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Who headed the team that discovered the wreck of the Titanic?
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A finless porpoise takes its name from a near-complete lack of which fin?
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