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Covers 30 percent of the earths landmass, covers 20 million square miles of ocean, touches more than 67 percent of the earths coastline
-As temperature increases, density increases (due to thermal expansion) -As salinity increases, density increases (due to the addition of more dissolved material) -As pressure increases, density increases (due to the compressive effects of pressure) of these 3 factors, only temperature and salinity influence the density of surface water. Pressure influences seawater density only when very high pressures are encountered, such as in deep ocean trenches.'' (Thurman H., et al, 2002)
"Okeanos (Oceanus) in Greek) is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 361 million square kilometers) is covered by ocean"- Ocean; WikipediaBy this estimate, Earth is approximately 508.45 million square kilometers..71x = 361x = 508.45510,072,000 km squared, total. About 30 percent land About 70 percent water See link for more information.
The height of the surface of the ocean is referred to as sea level.
Its SAND
The open ocean of any depth, where animals swim or float freely is called a pelagic zone. Salinity variations in the open ocean normally ranges from 33 to 38 percent.
38 parts per thousand
thermohaline
True
Ocean currents are generated by several environmental factors. These include wind, salinity variations, gravity, and natural events such as earthquakes.
Salinity can vary because of water temperature, rivers emptying into the ocean and mixing with ocean water, ice forming or melting, evaporation and precipitation. I think temperature is the biggest reason.http://wiki.answers.com/List_the_reasons_for_variations_in_salinity_in_the_various_oceans#ixzz16sZMdZIZ
The dead sea has a salinity of 33.7% normal ocean is around 3.1-3.8%
Salinity is a measure of how salty water is. Ocean water is more salty in some places than in others. The answer is yes, places where rivers pour fresh water into the ocean have low salinity because fresh water is normally cold and in warm areas, ocean water evaporates quicker. When this happens, salt is left behind and the ocean water has a higher salinity.
Salinity is the saltiness or dissolved salt content of a body of water.The average ocean salinity is 35 ppt. This number varies between about 32 and 37 ppt. Rainfall, evaporation, river runoff, and ice formation cause the variations. For example, the Black Sea is so diluted by river runoff, its average salinity is only 16 ppt.
Arctic ocean
You could increase the salinity of the ocean by adding salt or removing water (ie: by evaporation).
Salinity can vary because of water temperature, rivers emptying into the ocean and mixing with ocean water, ice forming or melting, evaporation and precipitation. I think temperature is the biggest reason.