Minamata human disease is caused by pollution of water by

Options

A. Cyanide
B. Methyl isocyanate
C. Lead
D. Mercury

Answer

**Step-by-Step Solution:**

1. **Understanding Minamata Disease**: Minamata disease is primarily a neurological disorder. This means it affects the nervous system of humans.

2. **Identifying Symptoms**: The symptoms of Minamata disease include:
- Muscle weakness
- Loss of vision
- Hearing damage
- Speech impairment

3. **Identifying the Cause**: The primary cause of Minamata disease is pollution, specifically by mercury.

4. **Source of Mercury**: Mercury enters the water bodies and accumulates in fish, particularly in larger fish species. This bioaccumulation leads to higher concentrations of mercury in the fish that humans consume.

5. **Conclusion**: Therefore, the correct answer to the question regarding what causes Minamata disease through water pollution is **mercury**.

**Final Answer**: Minamata human disease is caused by pollution of water by **mercury**.

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