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    Question

    Which of the following is a major technique of

    preventing soil erosion in hilly areas? 
    A Crop rotation Correct Answer Incorrect Answer
    B Use of chemical fertilizer Correct Answer Incorrect Answer
    C Puddling of soil Correct Answer Incorrect Answer
    D Contour bunding Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Contour bunding technique reduces water runoff and controls soil erosion through ridges covered with perennial grasses such as Andropogon and Vetiver.

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