What is the largest and deepest ocean basin on the planet, encompassing over 63 million square miles?

Answer Pacific Ocean

The Pacific Ocean could accommodate all of the world's continents! It is also the oldest of all surviving ocean basins. The age of its oldest rocks is around 200 million years. It is also known as the "Ring of Fire," because of the tremendous seismic and volcanic activity that occurs in the regions of tectonic plate subduction.

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