Question

What is meant by biosphere?​

Answer 1

Answer:

Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

Answer 2

The biosphere is the fourth sphere.biosphere is made up of the parts of Earth where life exists—all ecosystems.