The main constituents of pearls are Options: A . &nbspcalcium oxide and ammonium chloride B . &nbspcalcium carbonate and magnesium carbonate C . &nbsparagonite and conchiolin D . &nbspammonium sulphate and sodium carbonate

The main constituents

Question -

The main constituents of pearls are

Options:

A . calcium oxide and ammonium chloride

B . calcium carbonate and magnesium carbonate

C . aragonite and conchiolin

D . ammonium sulphate and sodium carbonate

Answer: Option B

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