define biosphere.?

Answer 1

Biosphere - living things on the earth ; )

Answer 2

From wikipedia:

Origin and use of the term
The term "biosphere" was coined by geologist Eduard Suess in 1875, which he defined as:[1]

“ The place on earth's surface where life dwells. ”


The biosphere is the outermost part of the planet's shell — including air, land, surface rocks and water — within which life occurs, and which biotic processes in turn alter or transform. From the broadest geophysiological point of view, the biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere (rocks), hydrosphere (water), and atmosphere (air). This biosphere is postulated to have evolved, beginning through a process of biogenesis or biopoesis, at least some 3.5 billion years ago.

Answer 3

The biosphere is the collective totality of life on Gaia, the living Earth. We can define the biosphere as being the totality of living beings on Earth and also those elements of the oceans, atmosphere, and lithosphere with which living organisms interact. It is the presence of a biosphere that distinguishes the Earth as a living planet from dead but otherwise geospherically similiar planets like Mars and Venus. It also the metabolic result of the organisms that make up the biosphere that preserve the Earth as a system hospitable to life (e.g. free oxygen, equilible climate, large bodies of standing water).

Answer 4

Earth is the only place where life is proven to exist. The planet's lifeforms are sometimes said to form a "biosphere". This biosphere is generally believed to have evolved ~3.5B years ago.The biosphere is divided into a number of biomes, inhabited by broadly similar flora and fauna.
On land, biomes are separated primarily by latitude. Terrestrial biomes lying within the Arctic and Antarctic Circles are relatively barren of plant and animal life, while most of the more populus biomes lie near the Equator.

Terrestrial organisms in temperate and arctic biomes have relatively small amounts of total biomass, smaller energy budgets, and display prominent adaptations to cold, including world-spanning migrations, social adaptations, homeothermy, estivation and multiple layers of insulation.

Some theorists therefore believe that the Earth is poorly suited to life. However, every part of the planet supports life, from the polar ice caps to the Equator. Recent advances in microbiology have proven that microscopic life lives inside rocks under the Earth's surface, and that the total mass of microbial life in so-called "uninhabitable zones" may, in terms of sheer biomass, outweigh all animal and plant life combined on the surface of the Earth.

Oceans mediate the cold and distribute nutrients. The Antarctic krill, Euphausia superba, for example, is generally considered to be the most successful animal of the planet, with a biomass probably over 500 million tonnes (c.f. human biomass of about 250 million tonnes).

Answer 5

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"The Earth's biosphere is a basically materially closed (some input from the solar system and from Earth's interior and some output via subduction and escaping gasses), and energetically open to sources, sunlight, sun and moon gravity, and from Earth's interior and to sinks (heat radiation and light reflection to space). The Earth's biosphere is now informationally open as well to space programs launching information gatherers and receivers outside the biosphere. The Earth's biosphere is a self-organizing, adaptive, complex system that increases its free energy in an amount substantially less (about 1%) than the difference in the free energy in molecular and informational organization.

The Earth's biosphere has existed at least 3.8 billion years, survived five major species extinction events, and one atmospheric transformation, contains about a trillion tons of life distributed perhaps amongst 30,000,000 or more species and whose dynamics are based on mutation and natural selection evolving adaptive behaviors and a guild of biomolecules whose chemistry is able to increase its free energy with the evolution of complex ecosystems such as rainforests and coral reefs. The Earth's biosphere has created and maintains its own improbable atmospheric composition, and produces an ever-growing "necrosphere" or geological strata of biogenic material such as soils, limestones, beaches, coal, oil formations and other deposits. Among its major attributes, it is the matrix of humanity and all its works, which include projects to take offspring biospheres throughout space."

Answer 6

the life supporting resources of earth are confined to a band called biosphere if u wanted it technical then It is a efficient self regulating ,intergrated ecological mega system capable of capturing ,converting,storing & utilizing solar energy

Answer 7

biosphere relates to environment.it is an important part of environment

Answer 8

It is the narrow releam of the earth that can support life .it consists of 3 parts,namely-Lithosphere,Hydrosphere,Atmosphere.it can support life in a variety of forms because of which we find marine life ,terrestial animals and airal animals.It's 2 components r-1)biotic component-consists of living organisms.Eg-humans.
2)Abiotic component-consists of non living things.Eg-table

Answer 9

Any space or place where life is present naturally.