Question

Why there is difference in the salinity of oceans ?

Answer 1

Answer:

Answer in Explanation

Explanation:

There is a marked difference in the salinity between the surface zones and the deep zones of the oceans. The lower salinity water rests above the higher salinity dense water. Salinity, generally, increases with depth and there is a distinct zone called the halocline (compare this with thermocline), where salinity increases sharply.

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Answer 2

anytime fresh water enters the oceans, it lowers the salt levels. evaporation removes it more in arid places, but there is less amount of rain to make up for water loss and therefore some places in oceans have more salinity than other places.