Boiling shows what type of phenomenon ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Boiling:**
- Boiling is a process that occurs when a liquid is heated to its boiling point, resulting in the formation of vapor bubbles within the liquid.

2. **Comparison with Evaporation:**
- Unlike evaporation, which occurs only at the surface of the liquid and can happen at any temperature, boiling involves the entire liquid. In boiling, all the particles throughout the liquid gain enough energy to transition into the gas phase.

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