Biosphere refers to that part of the earth in which all life forms exist. The organisms comprising the biosphere are mostly found in the relatively narrow zones of contact between the atmosphere, lithosphere and hydrosphere. This shallow but extremely complex zone lying at or close to the interfaces between the three realms of the earth i.e. the atmosphere, hydrosphere and lithosphere, is known as the biosphere. Since life is possible only in this layer, it is vital for us.
Irrespective of the location on the earth, whether it is a pond, lake, ocean, forest or desert, and the size, the organisms (plants, animals, microorganisms) and their physical environment interact with each other in an orderly manner so that there is a continuous flux of energy and matter between them.
Posted by orchid101
on September 27, 2013 at 3:55 AM (Answer #1)