Epsom salt is chemically known as_________? - PakMcqs

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1. vitamin D is chemically know as_________ ?

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2. Chemically finger nails are made up of ____________?

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3. The group of minerals chemically containing hydrocarbons is_______?

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4. Mercury is also known as_________?

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5. The study of heavenly bodies is known as_________?

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6. A common skin condition that causes skin redness and irritation is known as_________?

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7. The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water.

   A. 1 gram B. 10 grams C. 1 kg D. 10 kg...

8. Average salinity or ratio of salt as per kilogram of water of ocean is__________?

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9. What is the percentage of salt water on earth surface?

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10. A fresh egg when placed in salt water will __________ ?

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