Oceans

What percentage of Earth's volcanic activity occurs on the ocean floor?

More Questions from Oceans
The Amazon River is connected to which major ocean?
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What causes deep ocean currents?
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Which animal spawns in fresh water but lives most of its life in the sea?
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Overfishing means what as it relates to the environment?
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Which lake is the second largest in the world?
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Another name for the Risso's dolphin is what?
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Corals are ancient animals related to what?
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What is the lifespan of the harbor porpoise?
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