Oceans
What instrument uses sound waves to help get a picture of the ocean's bottom?
More Questions from Oceans
The group of crustaceans that include crabs, lobsters and shrimps have how many legs?
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The world's largest hypoxic "dead zone" is located in what body of water?
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Pufferfish and boxfish are deadly to humans because of the presence of what poison in their skin and organs?
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In what century did Vitus Bering discover Alaska while exploring what became the Bering Strait?
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Which of the following foods are most commonly eaten by sperm whales?
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