Oceans

The hadal zone begins at what depth?

More Questions from Oceans
Approximately how many pounds does the average sperm whale's heart weigh?
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Which of these is the largest of the world's oceans?
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What is the famous coral reef just off the coast of Australia called?
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Which is not a kind of boat or ship?
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What fish, though actually a scavenger, has become synonymous with vicious, predatory behavior?
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What ocean borders Japan to the east?
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In what year did the Deep Sea Drilling Project begin?
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How many chambers does a fish heart have?
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