How is ammonia formed ?

Explanation

### Step-by-Step Solution for How Ammonia is Formed

1. **Source of Nitrogen**:
- Ammonia (NH₃) is formed from nitrogen (N₂) which is obtained from the air. The air is composed of approximately 78% nitrogen, making it a readily available source.

**Hint**: Remember that nitrogen is abundant in the atmosphere and is a key reactant in ammonia production.

2. **Source of Hydrogen**:
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