Consider the following statements 1 Salinity in sea water is calculated as the amount of salt ...........

Geography NCERT

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Consider the following statements:

1.Salinity in sea water is calculated as the amount of salt dissolved in 1000 grams of seawater.

2.Salinity is usually expressed as parts per thousand or PPT.

3.Salinity of 24.7 PPM is considered as the upper limit to demarcate “brackish water”.

Which of the statements given above is/are correct?

1 and 2 only

2 and 3 only

1 only

1,2 and 3

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Explanation:

·Salinity is the term use to define the total content of dissolved salts in sea water.
·It is calculated as the amount of salt dissolved in 1000 gm of seawater.
·Salinity of 24.7 PPT has been considered as the upper limit to demarcate “brackish water”.