biosphere
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/ˈbaɪəʊsfɪr/
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/ˈbaɪəʊsfɪə(r)/
The biosphere is the global sum of all ecosystems. It can also be called the zone of life on Earth, a closed system (apart from solar and cosmic inputs), and largely self-regulating.
The biosphere is a complex network of interactions between living things and their environment, which includes the air, land, and water.