Biosphere is a thin layer of earth in which all living organism exist. Organisms within the biosphere not only adapt to the environment but also interact to modify and control chemical and physical conditions of the biosphere. An organism lives in a habitat.
Biosphere is spread out over the surface of planet earth extending about 8/10 kilometers in the upper reaches of atmosphere and also in same distance into the depths of oceans.
An organism responds to a variety of environment factors, and only when all of them are within the range of tolrance, it can inhabit a location. The actual location of place where an organism lives is called its habitat.
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