alleryStart learning →Per §3.4, sea water has an average salinity of approximately:
AAbout 0.5 percent dissolved salts
BAbout 3.5 percent dissolved salts
CAbout 1.5 percent dissolved salts
DAbout 8 percent dissolved salts
Answer & Solution
Correct answer: B. About 3.5 percent dissolved salts
1. §3.4 reads: 'Sea water has a salinity of about 3.5 percent.'
2. Of this, about 78 percent is sodium chloride and about 15 percent is chloride and sulphate of magnesium.
_Source: IGNOU ET-522 Block-1 Unit-3 Water, §3.4, p. 43_
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