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Biosphere - Wikipedia, the free encyclopedia |
 | | The biosphere is that part of a planet's outer 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). |
 | | The biosphere is an important concept in astronomy, geophysics, meteorology, biogeography, evolution, geology, geochemistry, and, generally speaking, all life and earth sciences. |
| en.wikipedia.org /wiki/Biosphere (782 words) |
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