Answers

2015-11-29T16:57:18+05:30
Biosphere consists of 3 realms - atmosphere, hydrosphere and lithosphere.
The atmosphere(the layer of air) contains the gases for our survival, hydrosphere (the layer of water) is the beginning of life and lithosphere(the layer of rocks) on which the living world including the land animals survive. Hence, biosphere is important for the survival of living organisms.
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