Category: Everyday Science | Last updated: 2026-09-18

Which mineral is crucial for the formation of hemoglobin, the protein in red blood cells responsible for transporting oxygen throughout the body?

A) Calcium
B) Iron
C) Potassium
D) Magnesium

Explanation

Iron is a key component of hemoglobin, which enables red blood cells to carry oxygen from the lungs to the rest of the body. A deficiency can lead to anemia.

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