From where does ozone come in the photochemical smog ?

Explanation

### Step-by-Step Solution:

1. **Understanding Photochemical Smog**:
- Photochemical smog is also known as summer smog because it typically occurs during the summer months when sunlight is more intense.

2. **Role of Sunlight**:
- During summer, the strong sunlight interacts with nitrogen dioxide (NO2) present in the atmosphere.

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