From being a crucial building block of steel to nourishing plants and helping carry oxygen in your blood iron is always busy helping sustain life on Earth. In animals, it is a component of hemoglobin a protein in blood that carries oxygen from the lungs to the tissues in the body.
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From being a crucial building block of steel to nourishing plants and helping carry oxygen in your blood iron is always busy helping sustain life on Earth. In animals, it is a component of hemoglobin a protein in blood that carries oxygen from the lungs to the tissues in the body.