Question

what is biosphere ?​

Answer 1

Answer:

an artificial structure enclosing a self-contained ecosystem or ecosystems.

"the elliptical domed biosphere is the largest single-span glasshouse in the world"

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Answer 2

The biosphere is made up of the parts of Earth where life exists—all ecosystems. The biosphere extends from the deepest root systems of trees, to the dark environments of ocean trenches, to lush rain forests, high mountaintops, and transition zones like this one, where ocean and terrestrial ecosystems meet.