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

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

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

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