Write down the composition of air.

Explanation

**Step-by-Step Solution:**

1. **Understanding Air Composition**: Air is a mixture of various gases that are essential for life on Earth. It forms a protective blanket around the planet, known as the atmosphere.

2. **Identifying Major Components**: The primary gases that make up air include:
- Nitrogen (N2)
- Oxygen (O2)
- Water Vapors (H2O)
...