The atmosphere is nationally divided into four major layer, on the basis of vertical . . . . . . . .

Our atmosphere is the blanket of gases and air that surrounds our Earth.
Based on temperature, the layers of the atmosphere are divided into four major layers. These are the troposphere (17°C - -51°C), the stratosphere (-3°C), the mesosphere (-85°C) and the thermosphere (up to 4,500 degrees Fahrenheit).