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Biosphere refers to
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- the area of the land inhabited by living organism
- the part of ocean inhabited by plants and animals
- the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms
- the atmosphere surrounding the living organisms
Correct Option: C
The biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere. The biosphere is made up of the parts of Earth where life exists. It is the worldwide sum of all ecosystems.