World Geography
The three recognized major fishing grounds of the world are located in the

one in the southern hemisphere only and two in the northern hemisphere
northern hemisphere only
southern hemisphere only
two in the southern hemisphere only and one in the northern hemisphere

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World Geography
The relative abundance of dissolved salts in seawater in descending order is as follows

sodium, chlorine, magnesium, potassium, sulphate, calcium
chlorine, sodium, sulphate, magnesium, calcium, potassium
chlorine, magnesium, calcium, sodium, potassium, sulphate
chlorine, sodium, magnesium, calcium, potassium, sulphate

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