Question

Q. Which of the following factors affect the salinity of surface ocean water?

Select the current answer using the code given below.

• A. 1, 2, 4 and 5 only
• B. 1, 2, 3, 4 and 5 only
• C. 2, 3, 4 and 6 only
• D. 1, 2,3, 4, 5 and 6 only

Answer 1

The correct option is B 1, 2, 3, 4 and 5 only

Explanation:

Factors affecting ocean salinity are mentioned below:

1. The salinity of water in the surface layer of oceans depend mainly on evaporation and precipitation.
2. 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.
3. Wind also influences the salinity of an area by transferring water to other areas.
4. 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.