GEOLOGY

EARTH SCIENCE

SEDIMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The proportion of dissolved substances in seawater is expressed as 0/00, which is the same as ____
A
parts per hundred
B
parts per thousand
C
parts per million
D
molarity
Explanation: 

Detailed explanation-1: -Salinities in the open ocean have been observed to range from about 34 to 37 parts per thousand (0/00 or ppt), which may also be expressed as 34 to 37 practical salinity units (psu). Inorganic carbon, bromide, boron, strontium, and fluoride constitute the other major dissolved substances of seawater.

Detailed explanation-2: -The hydrogen and oxygen atoms in water molecules make up about 96.5 percent of the mass of seawater. This means that in a seawater solution, about 3.5 percent of the mass is made up of dissolved solutes like Na+ and Cl– (Fig.

Detailed explanation-3: -The concentration of salt in seawater (its salinity) is about 35 parts per thousand; in other words, about 3.5% of the weight of seawater comes from the dissolved salts.

Detailed explanation-4: -Salinity is the amount of dissolved salts or ions in seawater. The unit of measurement is grams of salt per 1000 grams of seawater or simply parts per thousand (written as ‰). The approximate salinity of seawater is 35 ‰ (equal to 3.5 %).

Detailed explanation-5: -In sea water there is typically close to 35 grams of dissolved salts in each liter. It is written as 35 ‰ The normal range of ocean salinity ranges between 33-37 grams per liter (33‰-37‰).

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