Biosphere - MSN Encarta

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Biosphere - Wikipedia, the free encyclopedia
The biosphere is the part of the Earth, including air, land, surface rocks, and water, within which life occurs, and which biotic processes in turn alter or transform.
biosphere
Biosphere booking: contact Kjell Kalleklev Management. There will be no more Biosphere concerts in 2008. I am tired of flying. I hate airports, security checks, unhealthy food, air ...
Biosphere
The Island of Lanzarote in the Canary Islandsand a jewel of an island. Although it has three main tourist resorts, it is certainly not

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Biosphere, the Earth's relatively thin zone of air, soil, and water that is capable of supporting life, ranging from about 10 km (6 mi) into the atmosphere to the deepest ocean floor. Life in this zone depends on the Sun's energy and on the circulation of heat and essential nutrients. The biosphere remained sufficiently stable for hundreds of millions of years to sustain the evolution of today's life forms. Large-scale divisions of the biosphere into regions of different growth patterns are called plant formations, or biomes (see Ecology).