Explain why the snow on mountain peaks does not melt at a temperature slightly above `0^(@)C`.

Explanation

### Step-by-Step Solution:

1. **Understanding the Scenario**:
- Snow on mountain peaks remains solid even when the temperature is slightly above 0°C. This is contrary to what we might expect, as snow typically melts at 0°C under normal conditions.

2. **Atmospheric Pressure at High Altitudes**:
- At high altitudes, such as mountain peaks, the atmospheric pressure is significantly lower than at sea level. This decrease in pressure is a well-known fact in physics and chemistry.

...