Salt water source. Divided into seas and oceans. Salt water is a liquid derived from a sea or ocean. In General, a worldwide ocean salinity (salinity) of approximately 3.5%, or 35 parts per thousand means that part in sea water every 1 kg of salt are found is 35 grams (often found in the form of sodium chloride ions (Na +, Cl −), the average density at the surface of the water of the oceans are at 1.025 g per ml. Sea water has a density of more than fresh water (fresh water has a density of 1.000 g per ml, maximum temperature of 4 degrees Celsius) because it has a heavy salt and Electrostriction (electric current, but in terms of the electric field). The freezing point of seawater are temperature − 2. 28.4 degrees Celsius or degrees Fahrenheit. In the water column concentrations of 35 parts per thousand (ppt 35).
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