The dead sea has a salinity of 33.7% normal ocean is around 3.1-3.8%
Yes
The dead sea is so salty absolutely nothing lives in it, you cannot swim in it either, only float a little. So to answer your question the Dead sea is much more salty than any other ocean or body of water on this earth!
The ocean is more salty now than it was long ago.
Most lakes are fresh water, though some lakes are saline. The Great Salt Lake in Utah is saltier than the ocean, as is Salton Sea in southern California and the Dead Sea in the middle east (the Dead Sea is nearly ten times more salty than the ocean).
a sea
Because the ocean lives the slat behind and in the warm and dry it gets more salty.
A pond because it is smaller than an ocean generally and isn't as salty.
The dead sea has so much salt in it, you can actually float on the surface. it is 8.6 times more salty than the ocean (if you get the water in your eyes, however, it can blind you).
Normally the word "sea" is synonymous with the term ocean - in which case they would have the same salinity. However one can also use the term "sea" to describe a salty inland lake (e.g. the dead sea). In many cases inland seas are more salty than the oceans.
no
The Mediterranean Sea is less salty than the Dead Sea. The Dead Sea is the saltiest water on earth because of the high level of evaporation.
The Artic Ocean is more salty than oceans further south because when sea water freezes salt gets left behind in unfrozen water .