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The high seas cover almost half of the world’s surface and 64% of the oceans. Most of the world is not owned by any nation and this unowned area is mainly aquatic....

Finding an average of 34.7 grams of salt per litre of seawater is no mystery: since the dawn of time, the sea has been a large body of salt water!...

Oceanographers are constantly trying to measure temperature because it is an essential physical property of seawater....

The Earth's surface covers more than 510 million square kilometres, but less than 30% of this surface is covered by land....

3800 metres is the average depth of the ocean, but it reaches 11,020 metres in the Mariana Trench in the northwestern part of the Pacific Ocean (coordinates 11° 21′ North Latitude and 142° 12′ East Longitude)....