Definition of Troposphere

The Earth’s atmosphere is composed of several layers. The lowest of those layers is termed the troposphere. It is that part of the atmosphere where the phenomena related to weather change occur. Almost all weather conditions take place in this region of the atmosphere.


The height of the troposphere changes in tropics, polar regions, etc. hence, the average height is estimated to be 13 km. The troposphere is composed of dry air which contains nitrogen, oxygen, argon, and a small quantity of carbon dioxide. Small amounts of water vapors are also present. Above the troposphere lies the Stratosphere and there is an inversion layer which is named the Tropopause. In this region, the air temperature remains constant throughout the thickness.

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