Oceans

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

More Questions from Oceans
Which U.S. State is located closest to the Atlantic Ocean?
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What is the third largest ocean in the world?
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Brine pools in the ocean have an unusually high level of what?
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Which of the following traits are used to help classify whales as mammals?
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How many countries were affected by the 2004 Indian Ocean tsunami?
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Which of the following seafood fish is usually pink/orange in color?
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An island’s windward side faces what?
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The abyssal zone begins at what depth?
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