The  (also the sea or the world ) is the of   that covers approximately 70.8% of the surface of Earth and contains 97% of 's . Another is “any of the large bodies of into which the great is divided”. Separate names are used to identify five different areas of the Pacific (the largest) Atlantic, Indian, Southern (Antarctic), and Arctic (the smallest). Seawater covers approximately 361,000,000 km2 (139,000,000 sq mi) of the planet. The is the principal component of 's hydrosphere, and therefore integral to life on . Acting as a huge heat reservoir, the influences climate and weather patterns, the  cycle, and the  cycle.

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