Soil

5 Questions
  1. 1
    The black cotton soil of India has been formed due to the weathering of
    UPSC CSE I - 2021
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    Answer: B. fissure volcanic rock

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  2. 2
    Which of the following statements regarding laterite soils of India are correct?
    1. They are generally red in colour.
    2. They are rich in nitrogen and potash.
    3. They are well-developed in Rajasthan and UP.
    4. Tapioca and cashew nuts grow well on these soils.
    Select the correct answer using the codes given below.
    UPSC CSE I - 2013
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    Answer: C. 1 and 4

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  3. 3
    Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land ?
    UPSC CSE I - 2011
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    Answer: B. It makes some soils impermeable

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  4. 4

    When you travel in certain parts of India, you will notice red soil. What is the main reason for this colour?

    UPSC CSE I - 2010
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    Answer: C. Presence of ferric oxides

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  5. 5

    Assertion (A): The percentage of net sown area in the total area of Andhra Pradesh is less as compared to that of West Bengal.
    Reason (R): The soil of most of Andhra Pradesh is laterite.

    UPSC CSE I - 2006
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    Answer: C. A is true but R is false

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