Oceans

What is the periodic rise and fall in the ocean's water level called?

More Questions from Oceans
Approximately how long is the gestation period for a blue whale calf?
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What was normal cruising speed for the Titanic?
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What is the up and down movement of ocean water caused by wind called?
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Which fish helps balance the algae and coral on a reef?
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Giant kelp can grow up to which length per year?
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An island’s windward side faces what?
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What determines the sex of a sea turtle?
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What percentage of our oxygen supply is generated in the ocean?
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