Briefly explain main layers of the atmosphere.

The main layers of atmosphere are-

● Troposphere- It is the closest layer to the earth surface. All the weather phenomenons occur in this layer. It begins at the surface of earth and extends to 4-12 miles. It is also known as lower atmosphere.

● Stratosphere- Temperature rises in this layer but is below freezing. It extends to 30-35 miles above the earth’s surface.

● Mesosphere-it lies above 3-35miles from the earth surface. The air here is thin and the molecules are large distance apart.

● Thermosphere- it rises several hundred miles from the earth surface and lies from 50-400miles. Temperature in this layer can be as high as 2000 degree centigrade.

● Exosphere- Extends from top of thermosphere to 6200 miles. The layer contains very few atmospheric molecules which can escape into space.