Multiple choice general knowledge

Which of the following is a substance abundantly available in the sea and administered in a certain deficiency disease?

  1. Iron

  2. Vitamin A

  3. Fluorine

  4. Iodine
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Iodine is abundantly available in seawater and is used to treat iodine deficiency disorders like goiter. Seafoods and iodized salt are common sources. The deficiency causes thyroid problems and was historically common in landlocked regions.

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