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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World Geography
Zebrafish, which has been genetically modified in Glofish to be sold as a pet is native to which among the following countries?

Australia & New Zealand
Japan
India and Sri Lanka
India and Pakistan

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