An ocean (from Ancient Greek , transc. Okeanos, the sea of classical antiquity) is a body of saline water that composes much of a planet's hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans. The word sea is often used interchangeably with "ocean" in American English but, strictly speaking, a sea is a body of saline water (generally a division of the world ocean) partly or fully enclosed by land.

Answer this question based on the passage: what are the earth oceans from largest to smallest? Okie... think carefully first, then make a decision:
The relevant information is: These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans. So, the answer is the Pacific , Atlantic , Indian , Southern ( Antarctic ) , and Arctic Oceans.