Consider the following statements relating to Sea Salinity :The ocean salinity depends on evaporation and precipitationAny change in the temperature or density influences the salinityMajor source of sea salinity is terrestrial discharge by riversWhich of the statements given above are correct?

The correct answer is 1, 2 and 3. SEA salinity is the concentration of salt in seawater. It varies with temperature, evaporation, and precipitation. When there is more evaporation, liquid water turns into water vapour. Precipitation occurs when water is released from clouds in the form of rain, freezing rain, sleet, snow, or hail. Hence statement 1 is correct.Please note that when temperature increases, liquid water turns into water vapour and the density of the medium decreases. It directly affects the salinity. Hence statement 2 is correct.ROCKS on terrestrial land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, and it erodes rocks. This RELEASES salt ions that are carried away to STREAMS and rivers that eventually feed into the OCEAN. Hence statement 3 is correct.