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Earth science (also known as geoscience, the geosciences or the Earth Sciences), is an all-embracing term for the sciences related to the planet Earth. It is arguably a special case in planetary science, being the only known life-bearing planet. There are both reductionist and holistic approaches to Earth science. The major historic disciplines use physics, geography, mathematics, chemistry, and biology to build a quantitative understanding of the principal areas or spheres of the Earth system.
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Earth's spheres
- Geology describes the rocky parts of the Earth's crust (or lithosphere) and its historic development. Major subdisciplines are mineralogy and petrology, geochemistry, geomorphology, paleontology, stratigraphy and sedimentology.
- Geodesy and Geophysics (joined together in the IUGG) investigate the figure of the Earth, its reaction to forces and its potential fields (magnetic and gravity field). Geophysicists explore also the Earth's core and mantle and the natural deposits, Geodesists the movement of stars and satellites.
- Soil science covers the outermost layer of the Earth's crust that is subject to soil formation processes (or pedosphere). Major subdisciplines include edaphology and pedology.
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Interesting science: Barnacles become toxic to repel hungry predators http://news.bbc.co.uk/earth/hi/earth_news/newsid_8426000/8426208.stm
gd (Gunther Deichmann) Wed, 23 Dec 2009 06:15:49 -0000
Interesting science: Barnacles become toxic to repel hungry predators http://news.bbc.co.uk/earth/hi/earth_news/newsid_8426000/8426208.stm
@justinbieber Thursday at school, the teacher said something about down to the earth for science, I shouted out your name..arkward..
lindsey_cheer10 (Lindsey Morris) Wed, 23 Dec 2009 06:07:48 -0000
@justinbieber Thursday at school, the teacher said something about down to the earth for science, I shouted out your name..arkward..
richard dawkins said there is n
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