Ocean water is salt water containing a variety of salts. Salts in soils and rocks that are continually eroded from land cause the ocean's saltiness. Rivers and streams carry small amounts of salt to the ocean day after day. As the water in the ocean is evaporated by the sun in the water cycle, the salts get left behind. Therefore, in areas where there is a lot of evaporation, the ocean water is actually saltier.
but this does not apply for the dead sea oops the answer above is correct
