Which of the following green gas is damaging the ozone layer?

Options

A. CFCs
B. `CO_2`
C. `CH_4`
D. `SO_2`

Answer

To solve the question "Which of the following green gas is damaging the ozone layer?", we need to identify the greenhouse gases that contribute to ozone layer depletion.

### Step-by-Step Solution:

1. **Understanding the Ozone Layer**: The ozone layer is a protective layer in the Earth's stratosphere that absorbs most of the sun's harmful ultraviolet (UV) radiation. It is crucial for protecting living organisms from UV radiation.

2. **Identifying Greenhouse Gases**: Greenhouse gases are gases that trap heat in the atmosphere. Common examples include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and chlorofluorocarbons (CFCs).

3. **Focusing on Ozone Depletion**: While many greenhouse gases contribute to global warming, not all of them damage the ozone layer. The primary culprits for ozone depletion are chlorofluorocarbons (CFCs).

4. **Understanding the Role of CFCs**: CFCs are man-made compounds that release chlorine atoms when they are broken down by UV radiation. These chlorine atoms can destroy ozone molecules, leading to the thinning of the ozone layer.

5. **Conclusion**: Based on the information, the green gas that is damaging the ozone layer is **Chlorofluorocarbons (CFCs)**.

### Final Answer:
The gas damaging the ozone layer is **Chlorofluorocarbons (CFCs)**.

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