Biosphere is

Options

A. a component in the ecosystem.
B. composed of the plants present in the soil.
C. life in the outer space.
D. composed of all living organisms present on earth which interact with the physical environment.

Answer

D

Explanation

Biosphere, one of the four layers that surround the Earth, is composed of all living organisms present on earth which interact with their physical environment. It is collectively used for all the ecosystems of world.