Which of the following is essential to regulate the heart beat?
A. Sodium
B. Sulphur
C. Potassium
D. Iron
Answer: Option C
A. Sodium
B. Sulphur
C. Potassium
D. Iron
Answer: Option C
Which one of the following is useful in the treatment of scurvy disease?
A. Mango
B. Papaya
C. Aonia
D. Ber
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