Roughly 71 percent of earth’s surface is covered by saltwater oceans, and the continents themselves hold lakes, rivers, and, in some instances, seas The largest bodies of water are the oceans, but there is some ongoing discussion regarding the actual number of separate oceans. Since the year 2000, the international hydrographic organization (iho) started recognizing 5 oceans Pacific, atlantic, indian, arctic and southern ocean. However, those conducting oceanic research generally recognize the existence of five major oceans The pacific, atlantic, indian, southern, and arctic oceans
Arbitrary boundaries separate these bodies of water, but they are largely defined by the continents that frame them. Historically, there are four named oceans The atlantic, pacific, indian, and arctic The vast bodies of water surrounding the continents are critical to life on earth But overfishing and global warming threaten to leave oceans barren. Map of earth's five oceans
The atlantic ocean, the pacific ocean, the indian ocean, the arctic ocean and the southern ocean. All five oceans are connected with each other, and water flows between them The deepest known area of the ocean is the mariana trench in the pacific It is nearly 11,000 metres deep.
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