l am the layer that is closest to the earth and support life. who I am
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Answer:
Explanation:
Definition of 'Homosphere'
Definition: Homosphere can be defined as the lowest part of the Earth’s atmosphere. It lies between the heterosphere and the surface of the earth. It is the earth’s atmosphere below the altitude of roughly 80 kms where there is an almost-homogenous composition of nitrogen (78%), oxygen (21%), argon (10%), carbon dioxide as well as traces of constituents like dust particles, aerosols and cloud droplets.
Description: The Earth’s atmosphere has two major zones or segments – homosphere and heterosphere. The homosphere is the lower segment of the two-part division of atmosphere and further consists of three regions namely troposphere, stratosphere and mesosphere. All the three regions have the same composition of air. However, the concentration of air keeps decreasing significantly as the altitude increases.
Troposphere: The troposphere forms the bottom-most layer of the homosphere and thus closest to the earth’s surface. This is the layer where we live in. It is also known as the earth’s weather layer as it has all weather conditions. This layer exists in the ground to an altitude of about 11 kilometres. Commercial aircraft fly in troposphere. Data-gathering balloons also exist in this layer.