SSC Geography Sample Paper NCERT Sample Paper-5

  • question_answer
    What is soil profile?

    A)  The aggregation of individual soil particles in the form of lumps or clusters of soil

    B)  A layer of soil having distinct chemical composition, colour texture and structure

    C)  It is an important tool in nutrient management.

    D)  Loose and unconsolidated weathered materials

    Correct Answer: C

    Solution :

    [c] The soil profile is an important tool in nutrient management. By examining a soil profile, we can gain valuable insight into soil fertility. As the soil weathers and/or organic matter decomposes, the profile of the soil changes. For instance, a highly weathered, infertile soil usually contains a light-coloured layer in the subsurface soil from which nutrients have leached away. On the other hand, a highly fertile soil often has a deep surface layer that contains high amounts of organic matter. With clues provided by soil profile, we can begin to predict how a soil will perform under certain nutrient management conditions.

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