What is the percentage of nitrogen in air?

Explanation

To find the percentage of nitrogen in air, follow these steps:

1. **Understand the Composition of Air**: Air is a mixture of different gases. The primary components of air include nitrogen, oxygen, argon, carbon dioxide, and trace gases.

2. **Identify the Major Gases**: The major gases in air are:
- Nitrogen (N2)
- Oxygen (O2)
- Argon (Ar)
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