In regions where the soil is deficient in a certain mineral, many people develop an enlarged thyroid gland. Identify the missing mineral.
Q1. In regions where the soil is deficient in a certain mineral, many people develop an enlarged thyroid gland. Identify the missing mineral.
Answer: Iodine
Explanation: Thyroxine synthesis requires iodine from the diet to prevent goiter; iron is tempting because it is essential for hemoglobin, not thyroid function.