Oceans

What instrument uses sound waves to help get a picture of the ocean's bottom?

More Questions from Oceans
An estuary connects the ocean to a what?
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The Atlantic Ocean was named after who in Greek mythology?
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What are scientists that study the ocean called?
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Which of these animals depends on the ocean currents in order to move?
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Of all marine crustaceans caught by humans each year, crabs make up what percent?
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In what century did Vitus Bering discover Alaska while exploring what became the Bering Strait?
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What ocean did the Pilgrims sail across to reach North America?
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What is the largest island in the Indian Ocean?
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