In which of the following condition ocean or sea waters will have low salinity 1 Region with h...........

Geography and Environment (CSC) World climates

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In which of the following condition, ocean or sea waters will have low salinity?

1. Region with heavy daily rainfall and high relative humidity.

2. in areas of inland drainage without links with the oceans.

3. Colder climate with little evaporation and adding of waters from rivers.

Select the correct answer using the code given below.

1 and 3 only

2 and 3 only

1 and 2 only

1, 2 and 3

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Explanation:

First and third statements are correct.

Second statement is incorrect as

In wholly or partially enclosed seas such as the Caspian Sea, Mediterranean Sea, Red Sea and Persian Gulf, the waters do not mix freely with the ocean water and they are not penetrated by ocean currents. Salinity is high, often over 37%. In areas of inland drainage without links with the oceans, continuous evaporation under an almost cloudless sky causes the accumulation of salts around the shores. In the open oceans where currents freely flow, salinity tends to be near the average 35% or even a little lower. The range of salinity is negligible where there is free mixing of water by surface and sub-surface currents.