Salt content in sea water is about ______________ percent?
Correct answer: C. 3.5
- A. 0.5
- B. 1
- C. 3.5
- D. 9.05
Explanation
Average seawater contains about 35 grams of dissolved salts per litre, corresponding to approximately 3.5% by mass. The other values are far below or above the normal salinity of seawater.
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