Question

earth’s biosphere is

Answer 1

The biosphere is one of the four layers that surround the Earth along with the lithosphere (rock), hydrosphere (water) and atmosphere (air) and it is the sum of all the ecosystems. The biosphereis unique. So far there has been no existence of life elsewhere in the 

Answer 2

The biosphere is one of the four layers that surround the Earth along with the lithosphere (rock), hydrosphere (water) and atmosphere (air) and it is the sum of all the ecosystems. The biosphereis unique. So far there has been no existence of life elsewhere in the universe.

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