A) Sodium
B) Calcium
C) FLuoride
D) Chlorine
Correct Answer: D
Solution :
The human body requires more calcium than any other mineral. At least 99Y of the calcium is found is the bones and teeth, giving them strength and rigidity. The remoiving 1Y, which is in the blood, miscles, and neruves, play an important role in regulating physiological functions.
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