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 (also called as ecosphere) is the largest unit in ecological hierarchy and includes all the ecosystems of the world i.e., all organisms interacting with their physical environment.
`{:(,"Abiotic components"),("Orgaism" rarr"Population" rarr,overset(darr)"Biotic community"),(rarr"Ecosystem"rarr"Biosphere",):}`