33.7%
dead seathe dead sea
Partial answer: The salinity of the dead sea is ~31.5% by weight while the salinity of the Mediterranean is ~3.5%
the dead sea
The salinity in isolated seas and salt-water lakes (for example, the Dead Sea) can be considerably greater. SO there's a high salinity in the Dead Sea. :D
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There are several factors that the Red Sea has high salinity. The Red Sea has a high rate of evaporation and very little precipitation. It also has a limited connection with the Indian Ocean, which has lower water salinity. The Red Sea has a lack of significant rivers or streams draining into the sea.
The Dead Sea, which has 10 times the salinity of the oceans
The Dead Sea has high salinity levels because it has no outlet for water to flow out. Water from the Jordan River flows in and evaporates, leaving behind salt and minerals, which increases the salinity over time.
Saltwater does not have one definite salinity - for instance the salinity of the water in the Dead Sea is different to that of the Atlantic. Indeed the salinity of the sea itself can vary.
The Dead Sea is 33.7 % Salinity - The oceans average 3.5% salinity. So the Dead Sea is Roughly 10 times a salty as the Oceans. ----------------- I found another source (wikipedia.org)that states that the Dead Sea is 8.6 times as salty as the sea.
The dead sea has a salinity of 33.7% normal ocean is around 3.1-3.8%
Red Sea