Question

Why can nobody sink in the Dead Sea?
A. Because the water is very shallow
B. Because entry in the dead sea is prohibited
C. Because water in the dead sea has the highest density
D. All of the above

Answer 1

Hint: All the minerals, salts from surroundings get washed into the Dead Sea. The water evaporates but the salts remain which makes the Sea very salty. The saltier the denser.

Complete step by step answer:
The Dead Sea is in the lowest valley on earth and landlocked in nature.
 Therefore all the minerals and salts from the surrounding waters flow into it. The Sea is anyways baked by the sun but the salts remain underneath.The content of Sodium Chloride is mostly replaced with other kinds of salts in the Dead Sea. Because of its salinity about eight to nine times that of most sea water, the buoyancy is like nothing you've experienced before.Objects which drop in dead sea water stop sinking when they displace a mass of water equal to their body mass.Therefore, the more salt is dissolved in water, the denser it becomes. The density of the Dead Sea is 1.24kg/litre which makes swimming similar to floating.The answer is Option C. Nobody can sink in the Dead Sea because of the higher density.

Note:The main concept that applies here is the density of water as the content like salts and minerals of different elements is present in the dead sea which make it the most dense sea in the world.