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BiologyCLASS 9CBSE
answered 12 May 2026

Differentiate between boiling and evaporation based on at least three key characteristics.

A.VERIFIED ANSWERfact-checked by tutors

1. Boiling is a bulk phenomenon, occurring throughout the liquid when it reaches its boiling point, whereas evaporation is a surface phenomenon, occurring at all temperatures. 

2. Boiling involves rapid bubble formation, while evaporation is a slow and continuous process. 

3. Boiling occurs at a fixed temperature (boiling point), while evaporation can occur at any temperature below the boiling point.
Explanation: 
Boiling is a phase transition that requires a specific temperature and involves the entire mass of the liquid, whereas evaporation is a continuous process driven by the kinetic energy of surface particles and can occur at various temperatures.

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