In earth water, air and land where all life forms inhabits are unitedly called biosphere. 7 km below the sea level and 6 km above the sea level i.e., total 13 km region is the domain of animal word. In other words, the life supporting environment of planet earth is called biosphere.
Biome is a unit of biosphere. The animals in a particular geographical area or influenced by the climate of that area.
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