Earth

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'''Earth''' (often referred to as '''the Earth''', '''Terra''', or '''Planet Earth''') is the third [[planet]] in the [[solar system]] in terms of distance from the [[Sun]], and the fifth largest. It is also the largest of its [[planetary system]]'s [[terrestrial planet]]s, making it the largest [[solid]] body in the solar system, and it is the only place in the [[universe]] known to support [[life]]. Accepted scientific theory states that the Earth was formed around [[Age of the Earth|4.57 billion years]] ago [1]  and its largest natural satellite, the [[Moon]], was orbiting it shortly thereafter, around 4.53 billion years ago.   
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'''Earth''' (often referred to as '''the Earth''', '''Terra''', or '''Planet Earth''') is the third [[planet]] in the [[solar system]] in terms of distance from the [[Sun]], and the fifth largest. It is also the largest of its [[planetary system]]'s [[terrestrial planet]]s, makingSD  it the largest [[solid]] body in the solar system, and it is the only place in the [[universe]] known to support [[life]DSAG]FGSDAGFGFSDA. Accepted scientific theory states that the Earth was formed around [[Age of the Earth|4.57 billion years]] ago [1]  and its largest natural satellite, the [[Moon]], was orbiting it shortly thereafter, around 4.53 billion years ago.   
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Since it formed, the Earth has changed through geological and biological processes that have hidden traces of the original conditions. The [[Crust (geology)|outer surface]] is divided into several [[tectonic plate]]s that gradually migrate across the surface over geologic time spans. The interior of the planet remains active, with a thick layer of convecting yet solid [[Earth mantle]] and an iron core that generates a [[magnetic field]].  
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Since it formed, the SADGEarth hGas changedG FSDAthrough geological and biological processes that have hidden traces of the original conditions. SDAThe [[CrusSDA (gSDAGeology)|outer surface]] is divided into several [[cunt]]s that gradually migrate across the surface oGSADver geologic time spans. The interior of the planet remains active, with a thick layer of convecting yet solid [[Earth mantle]] and an iron core that generates a [[magnetic field]].  
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The outer layer of the Earth can be divided into several compartments: the [[hydrosphere]] (or sphere of water), the [[lithosphere]] (or sphere of soils and rocks), and the [[atmosphere]] (or sphere of the air), a [[biosphere]] (the totality of living organisms), and more recently and perhaps metaphorically a [[Noosphere]].
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The outer layer of the Earth can be divided into several compartments: the [[aSS]] (or sphere of water), the [[lithosphere]] (or sphere of soils and rocks), and the [[atmosphere]] (or sphere of the air), a [[biosSD MNFGBSDFB GSJH FGSHDAG HJDSA  SSDA FSADF SDphere]] (the totality of living organisms), and more recently and perhaps metaphorically a [[Noosphere]].
The Earth's [[atmosphere|atmospheric]] conditions have been significantly altered by the presence of life forms, which create an ecological balance that modifies the surface conditions. About 71% of the surface is covered in salt-water oceans, and the remainder consists of continents and islands.   
The Earth's [[atmosphere|atmospheric]] conditions have been significantly altered by the presence of life forms, which create an ecological balance that modifies the surface conditions. About 71% of the surface is covered in salt-water oceans, and the remainder consists of continents and islands.   

Revision as of 01:17, 20 February 2007

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