Choose the odd one out w... ozone depletion in the stratosphere

Options

A. UV rays have the ability to both degrade as well as form ozone layer
B. UV rays are depleting the good ozone in the troposphere
C. CFC's are disturbing the balance of ozone equilibrium
D. UV-B rays cause inflammation of cornea called snow blindness

Answer

To solve the question of identifying the odd statement out regarding ozone depletion in the stratosphere, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Statements**: The question presents four statements related to ozone depletion. We need to analyze each statement carefully.

2. **Evaluate Each Statement**:
- **Statement 1**: "UV rays have the ability to both degrade as well as form ozone layer."
- This statement is partially true. UV rays can contribute to the formation of ozone in the stratosphere but can also lead to its degradation.
- **Statement 2**: "UV rays are depleting good ozone in the troposphere."
- This statement is incorrect. The ozone layer that protects us from UV rays is primarily located in the stratosphere, not the troposphere. Therefore, this is the odd one out.
- **Statement 3**: "CFCs are disturbing the balance of ozone equilibrium."
- This statement is true. Chlorofluorocarbons (CFCs) are known to deplete the ozone layer.
- **Statement 4**: "UVB rays cause inflammation of cornea called snow blindness."
- This statement is also true. UVB rays can indeed cause snow blindness due to their harmful effects on the eyes.

3. **Conclusion**: After evaluating all statements, we find that Statement 2 is the odd one out as it incorrectly states that UV rays are depleting ozone in the troposphere instead of the stratosphere.

### Final Answer:
The odd one out is **Statement 2: "UV rays are depleting good ozone in the troposphere."**

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