Consider the following statements relating to Sea Salinity :
- 1. The ocean salinity depends on evaporation and precipitation
- 2. Any change in the temperature or density influences the salinity
- 3. Major source of sea salinity is terrestrial discharge by rivers
Which of the statements given above are correct?
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2016
2. Any change in the temperature or density influences the salinity: Temperature affects the rate of evaporation and ice formation (brine rejection), thus influencing salinity. Density is determined by temperature and salinity. Changes in density (e.g., due to temperature changes) can cause water masses to move, influencing the distribution of salinity through mixing and circulation. This statement is correct.
3. Major source of sea salinity is terrestrial discharge by rivers: Rivers carry dissolved salts and minerals from the land, derived from the weathering of rocks, into the oceans. This continuous input over geological time is the primary reason for the ocean’s saltiness. This statement is correct.