| Troposphere |
- Extends from the Earth's surface to about 20 km of height.
- The height of the troposphere varies from the equator to the poles increasing towards the equator.
- The temperature in the troposphere decreases with height.
- All weather phenomenon occurs in this region.
- The transition boundary between the troposphere and the layer above is called the tropopause.
|
| Stratosphere |
- Extends from the top of Troposphere to about 50 km above Earth's surface.
- The temperature increases with height.
- The ozone layer is found in the lower portion of the stratosphere.
- The transition boundary between the stratosphere and the mesophere is called the stratopause.
|
| Mesosphere |
- Extends from the top of Stratosphere to about 85 km above Earth's surface.
- The temperature decreases with height.
- Most of the meteors burn up in this layer.
- The transition boundary between the mesophere and the thermosphere is called the mesopause.
|
| Thermosphere |
- Extends from the top of Mesosphere to about 600 km above Earth's surface.
- The temperature increases greatly with height reaching upto 2000° at the top of the layer.
- The ionosphere is a layer within the thermosphere.
- Auroras are formed in this layer.
|
| Exosphere |
- Extends from the top of Thermosphere to about 10000 km above Earth's surface.
- Satellites orbit the earth in this layer.
|