Answer:
Heat transfer occurs by radiation
Explanation:
There are three ways by which heat can be transferred from one body to another.
Conduction occurs when the two bodies are in contact. Heat transfer occurs due to vibration and collision of molecules.
Heat transfer via convection occurs when there is bulk motion of fluid.
Heat transfer via radiation can occur through space.
A glass of water kept in sunlight evaporates as the heat transfers to water via radiation. The temperature of the water rises and it starts evaporating.
