The main constituents of pearls are
A. calcium oxide and ammonium chloride
B. calcium carbonate and magnesium carbonate
C. aragonite and conchiolin
D. ammonium sulphate and sodium carbonate
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The main constituents of pearls are
A. calcium oxide and ammonium chloride
B. calcium carbonate and magnesium carbonate
C. aragonite and conchiolin
D. ammonium sulphate and sodium carbonate
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Answer:
The main constituents of pearls are Calcium carbonate and magnesium carbonate.
Verified answer
The main constituents of pearls are
B. calcium carbonate and magnesium carbonate