Soil is a layer of unconsolidated material at the surface of the earth which has been derived from rocks and organic matter through agencies of decay and disintegration.
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Which one of the following is the main reason for the loss of the top soil in India ?
Wind erosion
Water erosion
Excessive leaching
None of these
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What are the main factors responsible for the formation of soil ?
The major factors in the formation of soils are parent rock material, relief, climate and vegetation of the area.
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Which one of the following is the most widespread and most productive category of soil ?
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