Oceans

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

More Questions from Oceans
What does a human have to wear when exploring the depths of the ocean?
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What are the hard plates on the back of members of the Loricariidae family also known as "Armored Catfish Family"?
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How many inches thick from infancy to maturity is the blubber of a blue whale?
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Mid-ocean ridge means what as it relates to the environment?
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What part of kelp holds it to the ocean floor beneath it?
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In what year did the International Whaling Commission declare blue whales to be a protected species because of a huge decrease in their population?
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At what age do whales reach reproductive maturity?
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The only enemy to the orca or killer whale is which of the following predators?
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