Friday, September 9, 2011

Soil; Composition, Formation & Erosion

All soil is built up of four main components: mineral material, or broken-up rock bits; organic material, or humus, which is decomposed living animals, water & air. 45% is minerals, 5% is organic, 25% is water & 25% is air.

Soil forms through a complicated interaction of several interactions. The most important interactions are: parent material, time, climate, organisms & slope.


Soil erosion is caused by water, wind, & snow.


Thank You.

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