Oceans
What did early ocean scientists use to measure the distance to the ocean floor?
More Questions from Oceans
The Bering Strait lies between which two continents?
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The longest river in the world is located on what continent?
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The 'Ring of Fire' is a string of volcanoes in and around which ocean?
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What covers the skin of a cuttlefish and allows it to change its color to blend in with its surroundings?
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About how many million tons of salt are obtained from the ocean each year?
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