Snow blindness is caused by

Options

A. UV-B rays
B. Global warming
C. Radioactive pollution
D. Deforestation

Answer

**Step-by-Step Solution:**

1. **Understanding Snow Blindness:**
- Snow blindness is a medical condition that occurs when a person spends extended periods in snowy or icy environments without proper eye protection.

2. **Cause of Snow Blindness:**
- The primary cause of snow blindness is the reflection of ultraviolet (UV) rays from the snow or ice. These UV rays can damage the cornea of the eye, leading to a painful condition known as snow blindness.

3. **Analyzing the Options:**
- **Option A: UV rays** - This is the correct answer, as UV rays are responsible for causing snow blindness.
- **Option B: Global warming** - This option is incorrect because global warming refers to the increase in Earth's average temperature and does not directly cause snow blindness.
- **Option C: Radioactive pollution** - This option is also incorrect. Radioactive pollution pertains to the contamination of the environment with radioactive substances and does not relate to snow blindness.
- **Option D: Deforestation** - This option is incorrect as well. Deforestation refers to the clearing of forests and does not have a direct link to the cause of snow blindness.

4. **Conclusion:**
- The correct answer to the question "Snow blindness is caused by" is **UV rays**.

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