Soil is made up of a variety of components such as clay, silt, sand, stones and rock, humus as well as peat. Different types of soils have different compositions, giving them a variety of distinct characteristics.
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Soil is made up of air, water, minerals and organic matter. Minerals represent 45% of volume, water and air represent 25% each and organic matter represents from 2% to 5%.
Soil contains many different types of materials, including particles of rock, dust, sand, organic material, and even living organisms. The exact composition of soil varies depending on the type, but they all contain the same basic elements.