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| 1. |
What is the correct decreasing order of the share of different salts in sea water?$? |
| A. | Sodium chloride, magnesium chloride, magnesium sulphate, potassium sulphate |
| B. | Sodium chloride, magnesium chloride, potassium sulphate, magnesium sulphate |
| C. | Sodium chloride, magnesium sulphate, potassium sulphate, magnesium chloride |
| D. | Sodium chloride, magnesium chloride, potassium sulphate, magnesium sulphate |
| Answer» B. Sodium chloride, magnesium chloride, potassium sulphate, magnesium sulphate | |