Which mineral is helpful for water balance in the body?
Correct answer: B. Potassium K+
- A. Calcium
- B. Potassium K+
- C. Zinc
- D. Phosphorus
Explanation
Potassium is an electrolyte that helps regulate fluid balance inside cells, along with nerve and muscle function. Calcium, zinc, and phosphorus have other major roles and are not the best answer here.
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