Biosphere

one of the layers of the Earth shells (spheres) both a composition and energy of which in their significant features are determined by the activity of a Living matter. This term, introduced by E. Zuss in 1875, on the results of works by V.I. Vernadskiy, became a symbol of all outward area of the planet of Earth. B. includes troposphere, hydrosphere, rock sphere with power of 30-40 kms.