State the three processes by which the air gets heated. Explain in brief.

The three processes by which air gets heated are:

1. Convection — Convection occurs when heat is transferred through a gas or liquid. It is transmission of heat from one part of a liquid or gas to other part by upward movement of its particles.

2. Conduction — Conduction is a process in which heat is transferred directly through matter from a point of high temperature. Conduction transfers heat between adjacent molecules till the temperature is equal.

3. Radiation — It is the mode of transfer of heat which does not require any medium. It is a process by which a body emits radiant energy. It leads to loss of heat and leads of cooling.