Question

What is Biosphere?

Answer 1

1. Biosphere, the fourth sphere of the Earth, is a life-supporting layer that exists on the earth’s surface.
2. This layer on earth encompasses the Lithosphere, Hydrosphere, and Atmosphere.
3. It includes flora and fauna that thrive on or near the earth’s surface.
4. Biosphere harbors all ecosystems on the earth and sustains life forms including mankind.