Atmospheric layers, lecture by kalpana depan, Biyani Group of Colleges

It is part of lecture presented by kalpana depan, Asst. Prof. in Social science deptt. at biyani girls college on behalf of This lecture is atmospheric layer. One earth is surrounded by atmosphere, It has a 5 main layer. The Ist layer is troposphere, 2nd is the statosphre, third is ozonosphere, growth is the hesosphere and last layer is exosphere.
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