By whose excess the distortion in teeth anid bones takes place?

Options

A. Iron
B. Iodine
C. Fluorine
D. Zinc

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the substance that causes distortion in teeth and bones. This refers to discoloration or changes in the structure of these body parts.

2. **Identifying Relevant Ions**: The video discusses several ions: iron, iodine, fluorine, and zinc. We need to focus on which of these ions is responsible for the distortion in teeth and bones.

3. **Analyzing Each Ion**:
- **Iron**: It is associated with blood and hemoglobin but does not cause distortion in teeth and bones.
- **Iodine**: This ion is related to the thyroid gland and its health, not directly affecting teeth or bones.
- **Fluorine**: This ion is known to cause discoloration in teeth and bones when present in excess. It plays a role in the formation of teeth and bones but can lead to issues if there is too much fluoride.
- **Zinc**: This ion is important for the immune system and does not directly affect the structure of teeth and bones.

4. **Conclusion**: Based on the analysis, the ion responsible for the distortion in teeth and bones due to excess is **fluorine**.

**Final Answer**: The distortion in teeth and bones takes place due to excess **fluorine**.

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