Which one of the following is known as the life-supporting zone of the

Which one of the following is known as the life-supporting zone of the Earth ?

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Ecosystem

Biosphere

Atmosphere

Biome

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UPSC CISF-AC-EXE – 2022

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The biosphere is the sum of all ecosystems on Earth. It is the narrow layer of the Earth where life exists, encompassing parts of the land (lithosphere), water (hydrosphere), and air (atmosphere).

The biosphere is essentially the life-supporting zone of the Earth because it is the region where living organisms interact with the physical environment.

An ecosystem is a community of living organisms interacting with each other and their physical environment in a specific area. The atmosphere is the layer of gases surrounding the Earth. A biome is a large area characterized by its climate and the plant and animal communities adapted to that climate (e.g., forest, desert, grassland). While these are all components related to the Earth and its life, the biosphere is the overarching term for the entire zone where life is found.

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