It is well known to all about the salinity of the sea water.
According to one of the study on this ocean & sea publishes that the percentage
of the salinity in the sea water is almost 3.5% that means the sea water contains
35 gm salt as per liter of water. For the information this salty water contains
Sodium (Na ions) & Chloride (Cl ions).
The density of the sea water is 1.025gm/lit, which are
comparatively higher than the normal fresh water (the density of the fresh water is
1.00gm/lit). The cause behind this high density of the sea water is the salt poured
some extra mass without pouring any extra volume. In general the ions
available in the sea water are-Cl-55%, Na 30.6%, SO2 47.7%, Mg 3.7%, Ca 1.2%, K
1.1%etc.
The scientific cause behind the salinity & other minerals in
the sea water was proposed by the scientist Sir Edmond Halley. According to him due
to the heavy shower, the rocks & soils were poured into the river. This river
flows to the sea & puts all the minerals into the sea. According to this
scientist the lakes which does not have any ocean outlets has high percentage of
the minerals & salts (such as Dead Sea).
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