Use of soil Std Vll Science
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Soil is formed by weathering of rocks. Weathering is the breakdown of rocks by the action of air, wind and water. ... Rock is broken down into small particles. These small particles mix with humus (organic matter) and form soil.
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loam
The ideal blend of soil for plant growth is called loam. Often referred to as topsoil or black dirt by landscape companies, loam is a mixture of sand, clay, and silt.
The ideal blend of soil for plant growth is called loam. Often referred to as topsoil or black dirt by landscape companies, loam is a mixture of sand, clay, and silt.
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