question_answer

Consider the following statements and select the correct answer using the code given below:

1. About 3.5% of seawater consists of dissolved substances.

2. Variations of 0.1% in salinity are significant, therefore oceanographers prefer to use parts-per-thousand notion (%) rather than per cent (%) in discussing salinity.

3. Nearly every element present in the crust and atmosphere is also present in the oceans.

A) 1, 2 and 3 are correct

B) 1 and 2 are correct

C) 2 and 3 are correct      

D) None of the above is correct