AP BIOLOGY

ECOLOGY

BIOMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The measure of total salt content dissolved in water.
A
Temperature
B
Brininess
C
Iodized
D
Salinity
Explanation: 

Detailed explanation-1: -Salinity is the measure of the concentration of dissolved (soluble) salts in water from all sources. In general: surface water salinity is described by units of “electrical conductivity” (EC) groundwater salinity is described by units of “parts per million” (PPM)

Detailed explanation-2: -Salinity is the measure of the amount of dissolved salts in water. It is usually expressed in parts per thousand (ppt) or percentage (%).

Detailed explanation-3: -Salinity is the measure of the number of grams of salts per kilogram of seawater, which is expressed in parts per thousand. Parts per thousand can be defined as how many parts, or grams, of salt there are per thousand parts, or kilogram (1, 000 g), of seawater. The symbol for parts per thousand is ‰.

Detailed explanation-4: -In the past century, only two major methods have been used in the oceanography for measurement of the seawater samples salinity: chlorinity titration and conductometry.

Detailed explanation-5: -Hydrometers are used to measure the oceans salinity, or how “salty” the ocean is. To use a hydrometer you must fill up the tool with saltwater and then observe how much the lever is raised by the salinity. We like to use the measurement PPT or Parts per Thousand.

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