False: Evaporation is a surface phenomenon.

Explanation:
Evaporation is a process by which a liquid changes into its gaseous state at a temperature below its boiling point. It occurs at the surface of the liquid and involves the conversion of liquid molecules into vapor molecules. The process of evaporation is influenced by factors such as temperature, humidity, surface area, and air movement.

Evaporation is different from boiling, which is a bulk phenomenon. Boiling occurs throughout the bulk of the liquid and involves the conversion of the entire liquid into vapor. Boiling occurs at a specific temperature called the boiling point, whereas evaporation can occur at any temperature below the boiling point.

Evaporation can be accelerated by increasing the surface area of the liquid, increasing the temperature, reducing the humidity, and increasing the air movement above the liquid surface. These factors increase the rate of evaporation by increasing the number of liquid molecules that escape into the air.

In conclusion, evaporation is a surface phenomenon that occurs at the interface between a liquid and its surroundings. It differs from boiling, which is a bulk phenomenon that occurs throughout the entire liquid.

It is not bulk phenomenon because in this process liquid is not evapourated at same time .It takes time to evapourate whole liquid. Bulk means process that envolve molecules of both surface and inside part