París es la capital de Francia y una de las ciudades más visitadas del mundo. El documento menciona a Guillermo Hita y a Irene García, posiblemente personas que viajarán a París o tienen alguna conexión con la ciudad.
Soil is the mixture of minerals, organic matter, gases, liquids, and myriad organisms that together support plant life. Two general classes are topsoil and subsoil. Soil is a natural body that exists as part of the pedosphere and which performs four important functions: it is a medium for plant growth; it is a means of water storage, supply and purification; it is a modifier of the atmosphere of Earth; and it is a habitat for organisms all of which modify the soil. Soil is considered to be the "skin of the earth" with interfaces between the lithosphere, hydrosphere, atmosphere of Earth, and biosphere.[2] Soil consists of a solid phase (minerals and organic matter) as well as a porous phase that holds gases and water.[3][4][5] Accordingly, soils are often treated as a three-state system.[6]
Soil is the mixture of minerals, organic matter, gases, liquids, and myriad organisms that together support plant life. Two general classes are topsoil and subsoil. Soil is a natural body that exists as part of the pedosphere and which performs four important functions: it is a medium for plant growth; it is a means of water storage, supply and purification; it is a modifier of the atmosphere of Earth; and it is a habitat for organisms all of which modify the soil. Soil is considered to be the "skin of the earth" with interfaces between the lithosphere, hydrosphere, atmosphere of Earth, and biosphere.[2] Soil consists of a solid phase (minerals and organic matter) as well as a porous phase that holds gases and water.[3][4][5] Accordingly, soils are often treated as a three-state system.[6]
This is an introductory soil science presentation that I give to Master Gardeners, agribusiness personnel, farmers, and soil science students. Please feel free to contact me at andykleinschmidt@gmail.com with any comments regarding the presentation.
Soil science for teachers (massive-the real dirt on soil)Moira Whitehouse
A very large Slide Show on soil. Useful for anyone without formal earth science training who might need to bone up or teach any aspect of soil. It's huge, 159 slides. It could also be split up into several lessons for students.
This is an introductory soil science presentation that I give to Master Gardeners, agribusiness personnel, farmers, and soil science students. Please feel free to contact me at andykleinschmidt@gmail.com with any comments regarding the presentation.
Soil science for teachers (massive-the real dirt on soil)Moira Whitehouse
A very large Slide Show on soil. Useful for anyone without formal earth science training who might need to bone up or teach any aspect of soil. It's huge, 159 slides. It could also be split up into several lessons for students.