Oceans

Which underwater machine helps humans travel around beneath the surface of the ocean?

More Questions from Oceans
Male orca whales have a life expectancy of 50 - 60 years, what is the life expectancy of female orca whales?
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What is the uppermost ocean zone?
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What percent of the ocean is salt?
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Typically a tsunami is caused by what?
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What floating animal is eaten by blue whales?
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Which of the following has the largest head of any animal?
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What is the acronym for an instrument that measures Conductivity-Temperature-Depth of sea water?
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How many oceans does the equator pass through?
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