The salinity of ocean waters is calculated as the amount of salt (in gm) dissolved in _____ gm of seawater.

Question

Question

This question was previously asked in

SSC CGL 2021 Tier-I (Held On : 13 April 2022 Shift 2)

Answer 1

The correct answer is 1000.

Key Points

Salinity is the term used to define the total content of dissolved salts in seawater.
It is calculated as the amount of salt (in gm) dissolved in 1,000 gm (1 kg) of seawater.
The average salinity of the oceans is 35 parts per thousand.
The salinity of the dead sea is around 340 grams per litre of water.
The Dead Sea is a sea that is the saltiest of all oceans and seas.

Additional Information

Factors affecting ocean salinity are mentioned below:
- The salinity of water in the surface layer of oceans depends mainly on evaporation and precipitation.
- Surface salinity is greatly influenced in coastal regions by the freshwater flow from rivers, and in polar regions by the processes of freezing and thawing of ice.
- Wind also influences the salinity of an area by transferring water to other areas.
- The ocean currents contribute to the salinity variations.
- Salinity, temperature, and density of water are interrelated. Hence, any change in the temperature or density influences the salinity of water in an area.