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.
It shouldn't vary much, since the water in the ocean constantly gets mixed. However, if water evaporates in one place, the salinity (percentage of salt) in that place will increase; and if fresh water gets into the ocean (for example, from a river), that part of the ocean will have a low salinity.
The ocean is saltier in the tropics because of higher evaporation, and is less salty in the arctic,especialy in spring when the ice melts.
Salt water is a lighter density than fresh. The difference depends on the salinity of the water. This differs all over the world in different parts of the oceans and in salt water lakes.
the most dense part of the water is in the pacific ocean. it is located near the middle of the ocean. go 50 miles past the middle and you there. Make sure you go north though. It's an ocean trench. HOPE THIS HELPS>>>>>EVEN THOUGH IS'T WRONG...
The branches of earth science are so many and they have various roles. Some of them include geology which deals with land formations, oceanology which deals with oceans, meteorology which deal with weather and climate and so many more.
no it is actually found in the hydrosphere where it has all of the oceans and lakes
Precipitation
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
In open ocean evaporation affects the salinity of the oceans, in closed oceans the lack of sunrays cause greater salinity levels.
Water
Water
Oceans are big water bodies. Salinity is due to the presence of minerals in water.
The amount of salt in the water. Near the surface of the open oceans salinity is in general between 3.3% and 3.7%
salinity
There are several factors that affect salinity. Some of the main factors include evaporation and precipitation which will affect the salinity of oceans and seas.
3.1-3.6% salinity
The world's oceans have a salinity of about 3.5%
In any body of water; usually oceans.
i think no.