The 'stone' formed in human kidney consist mostly of_____________?
Correct answer: A. Calcium oxalate
- A. Calcium oxalate
- B. Sodium acetate
- C. Magnesium sulphate
- D. Calcium
Explanation
Most kidney stones are calcium oxalate, formed when calcium combines with oxalate in concentrated urine. Pure calcium is not the usual composition, although calcium is part of many stones.
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