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Which of the following soil has color mainly due to the diffusion of Iron oxide rather than presence of Manganese?


1. Regur Soil
2. Laterite Soil
3. Alluvial Soil
4. Yellow Soil
5. Peaty Soil

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Correct Answer - Option 2 : Laterite Soil

The correct answer is Laterite Soil.

  • Laterite Soil:
    • Laterite soils are mostly the end products of weathering.
    • They are formed under conditions of high temperature and heavy rainfall with alternate wet and dry periods.
    • Heavy rainfall promotes leaching (nutrients gets washed away by water) of soil whereby lime and silica are leached away and a soil rich in oxides of iron and aluminium compounds is left behind.
    • ‘Laterite’ means brick in Latin. They harden greatly on loosing moisture.
    • Laterite soils are red in colour due to little clay and more gravel of red sand-stones.
    • Laterite soils are rich in bauxite or ferric oxides.
    • They are very poor in lime, magnesia, potash and nitrogen.
    • Sometimes, the phosphate content may be high in the form of iron phosphate.
    • In wetter places, there may be higher content of humus.

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