Question

Which of the following statements are true about salinity?
1. The average ocean salinity is 35%.
2. Tropics have the highest salinity.
3. An electric salinity meter is used to measure salinity.
4. Vertical distribution of salinity remains constant across all the latitudes.
Select the correct answer using the codes given below:

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

Answer 1

The correct option is A 1, 2 and 3

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Equator : Salinity is low at the surface at the equator due to high rainfall and transfer of water through ocean currents.
Low Latitudes : Due to greater rate of evaporation, the surface salinity is much higher and decreases drastically with depth.
High Latitudes : Salinity increases with increasing depth in high latitudes.