📊 Biology
Q. Which mineral helps lower blood pressure?
  • (A) Sodium
  • (B) Potassium
  • (C) Chlorine
  • (D) Iron
✅ Correct Answer: (B) Potassium

Explanation: Potassium helps balance sodium levels and relax blood vessel walls.

Explanation by: Mr. Dubey
Potassium helps balance sodium levels and relax blood vessel walls.

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