Ocean's+Salinity

Ocean’s Salinity The ocean’s salinity comes from all the dissolved solids there is. The dissolved solids there are Chlorine, Sodium, Sulfur, Magnesium, Calcium, and Potassium, which make a big part of the salinity. Also, when the water evaporates in the ocean, it doesn’t take the salts. That’s why the oceans are saltier over time. Why are the ocean waters salty, and river’s water fresh? The rivers have fresh water because they are always filled with the rains that come. When this water gets to the ocean, it already has runoff; which carries salts. Also, freezing contributes to the ocean waters. When oceans freeze, in the Arctic and Southern ocean, they leave behind salt because in salt makes the ice melt. The water must be pure before freezing, which makes freezing point depletion. Freezing point depletion is basically that the ocean goes below zero to be able to freeze because the salts are connected to the water. This makes the ocean salinity increases. Some factors of the salinity are proximity to land. For example, the Atlantic Ocean is saltier close to the shore, than the middle of the ocean. Another factor is the temperature, as exampled above with evaporation and freezing. Currents are also a factor because currents distribute the salinity as it moves. Seas is also a factor.

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