Which of the following is not caused due to `SO_(2)`?

Options

A. Cough
B. Shortness of breath
C. Spasm of larynx
D. Blindness

Answer

To determine which of the following is not caused by sulfur dioxide (SO₂), we need to analyze the effects of SO₂ on human health and the environment.

### Step-by-Step Solution:

1. **Understanding Sulfur Dioxide (SO₂)**:
- Sulfur dioxide is a significant air pollutant primarily produced by industrial processes, burning fossil fuels, and volcanic eruptions.

2. **Identifying the Effects of SO₂**:
- SO₂ is known to cause various health issues, particularly affecting the respiratory system.
- Common effects include:
- Coughing
- Shortness of breath
- Asthma exacerbation
- Respiratory infections
- Spasms of the larynx (which can affect speaking)

3. **Assessing the Options**:
- We need to evaluate the options given in the question to identify which one is not associated with SO₂ exposure.
- The effects mentioned in the video transcript include respiratory problems and do not include any effects on vision or blindness.

4. **Conclusion**:
- Based on the information provided, the effect that is not caused by SO₂ is **blindness**. Therefore, the answer to the question is the option that states blindness.

### Final Answer:
The effect that is not caused due to SO₂ is **blindness**.

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