Changes

==Etymology==

==Etymology==

[http://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English], from Anglo-French, soil, piece of land, from Vulgar Latin *solium, alteration of [[Latin]] solea sole, sandal, [[foundation]] timber

[https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English], from Anglo-French, soil, piece of land, from Vulgar Latin *solium, alteration of [[Latin]] solea sole, sandal, [[foundation]] timber

*Date: [http://www.wikipedia.org/wiki/14th_Century 14th century]

*Date: [https://www.wikipedia.org/wiki/14th_Century 14th century]

==Definitions==

==Definitions==

*1 : firm land : [[earth]]

*1 : firm land : [[earth]]

*5 : a [[medium]] in which something takes hold and [[develops]]

*5 : a [[medium]] in which something takes hold and [[develops]]

==Description==

==Description==

'''Soil''' is a [[natural]] [[body]] consisting of layers (soil horizons) of mineral [[constituents]] of variable thicknesses, which differ from the [[parent]] [[materials]] in their [http://en.wikipedia.org/wiki/Geomorphology morphological], [[physical]], [[chemical]], and [http://en.wikipedia.org/wiki/Mineralogical mineralogical] characteristics.

'''Soil''' is a [[natural]] [[body]] consisting of layers (soil horizons) of mineral [[constituents]] of variable thicknesses, which differ from the [[parent]] [[materials]] in their [https://en.wikipedia.org/wiki/Geomorphology morphological], [[physical]], [[chemical]], and [https://en.wikipedia.org/wiki/Mineralogical mineralogical] characteristics.

It is [[composed]] of [[particles]] of broken rock that have been altered by [[chemical]] and [[environmental]] [[processes]] that include weathering and erosion. Soil [[differs]] from its [[parent]] rock due to [[interactions]] between the [http://en.wikipedia.org/wiki/Lithosphere lithosphere], [http://en.wikipedia.org/wiki/Hydrosphere hydrosphere], [[atmosphere]], and the [http://en.wikipedia.org/wiki/Biosphere biosphere].

It is [[composed]] of [[particles]] of broken rock that have been altered by [[chemical]] and [[environmental]] [[processes]] that include weathering and erosion. Soil [[differs]] from its [[parent]] rock due to [[interactions]] between the [https://en.wikipedia.org/wiki/Lithosphere lithosphere], [https://en.wikipedia.org/wiki/Hydrosphere hydrosphere], [[atmosphere]], and the [https://en.wikipedia.org/wiki/Biosphere biosphere].

It [[supports]] a [[complex]] [[ecosystem]], which supports the plants on the [[surface]] and creates new soil by breaking down rocks and sand. This microscopic ecosystem has co-evolved with the plants to [[collect]] and store [[water]] and [[nutrients]] in a [[form]] usable by plants.

It [[supports]] a [[complex]] [[ecosystem]], which supports the plants on the [[surface]] and creates new soil by breaking down rocks and sand. This microscopic ecosystem has co-evolved with the plants to [[collect]] and store [[water]] and [[nutrients]] in a [[form]] usable by plants.

Soil particles pack loosely, forming a soil [[structure]] filled with pore spaces. These pores contain soil [http://en.wikipedia.org/wiki/Solution solution] (liquid) and air ([[gas]]). Accordingly, soils are often treated as a [[three]] [[state]]-[[system]]. Most soils have a [[density]] between 1 and 2 g/cm³. Soil is also known as [[earth]]: it is the substance from which our [[planet]] takes its name. Little of the soil [[composition]] of planet [[Earth]] is older than the [http://en.wikipedia.org/wiki/Tertiary Tertiary] and most no older than the [http://en.wikipedia.org/wiki/Pleistocene Pleistocene]. In engineering, soil is referred to as regolith, or loose rock [[material]].

Soil particles pack loosely, forming a soil [[structure]] filled with pore spaces. These pores contain soil [https://en.wikipedia.org/wiki/Solution solution] (liquid) and air ([[gas]]). Accordingly, soils are often treated as a [[three]] [[state]]-[[system]]. Most soils have a [[density]] between 1 and 2 g/cm³. Soil is also known as [[earth]]: it is the substance from which our [[planet]] takes its name. Little of the soil [[composition]] of planet [[Earth]] is older than the [https://en.wikipedia.org/wiki/Tertiary Tertiary] and most no older than the [https://en.wikipedia.org/wiki/Pleistocene Pleistocene]. In engineering, soil is referred to as regolith, or loose rock [[material]].

==See also==

==See also==

*'''''[[Sky]]'''''

*'''''[[Clouds]]'''''

 

 

[[Category: Earth Science]]

[[Category: Earth Science]]