Which aerosol depletes ozone layer?

Explanation

### Step-by-Step Solution:

1. **Understanding the Ozone Layer**:
- The ozone layer is composed of ozone (O3) molecules and is located in the stratosphere of the Earth's atmosphere.
- Its primary function is to absorb and protect the Earth from harmful ultraviolet (UV) radiation emitted by the sun.

2. **Identifying Ozone-Depleting Substances**:
- Certain substances, particularly aerosols, can lead to the depletion of the ozone layer.
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