Name the oxides of nitrogen causing pollution .

Explanation

### Step-by-Step Solution:

1. **Understanding Nitrogen Oxides**: Nitrogen oxides (NOx) are a group of gases that are composed of nitrogen and oxygen. They are significant pollutants that can have harmful effects on the environment and human health.

2. **Identifying Common Nitrogen Oxides**: The main oxides of nitrogen that are known to cause pollution include:
- Nitrous oxide (N2O)
- Nitric oxide (NO)
- Nitrogen dioxide (NO2)
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