Question

why life is possible on biosphere only.(200words)

Answer 1

Heya Mate...

Life is possible in biosphere only because biosphere is that part of ecosystem where all the factors essential for living are present. Biosphere includes atmosphere, hydrosphere and lithosphere. Atmosphere includes the air we breathe i.e. Oxygen which is a very need for all the organisms. We include hydrosphere because as we know water plays an essential function in providing minerals to our body. Lithosphere is the land area however many organisms live in water too . Biosphere is the part which includes all these essential factors for living survival. Without these factors , life is impossible. Only because of biosphere. Biosphere is a sum of worldwide ecosystem. The biosphere (from Greek βίος bíos "life" and σφαῖρα sphaira "sphere"), also known as the ecosphere (from Greek οἶκος oîkos "environment" and σφαῖρα), is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth, a closed system (apart from solar and cosmic radiation and heat from the interior of the Earth), and largely self-regulating.[1] By the most general biophysiological definition, the biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere. The biosphere is postulated to have evolved, beginning with a process of biopoiesis (life created naturally from non-living matter, such as simple organic compounds) or biogenesis (life created from living matter), at least some 3.5 billion years ago.

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Answer 2

biosphere contains both biotic and abiotic components . there are tress ,air, animals, plants,soil etc . air is most important for all Living components. animals use oxygen to breathing and respiration process . plants use carbon dioxide to make food molecules. there is presence of water which is second most important component for living things. soil is also available in biosphere ,it is third important component for living things, plants grown in soil, soil has minerals . plants take minerals from soil and water from atmosphere to grow up. animals are dependent on plants for food. so life is possible in biosphere only