7th Class Science Soil Question Bank Soil

  • question_answer
    Which of the following farming practices helps to prevent the erosion of topsoil?

    A) Ploughing a field perpendicular to the contour lines.

    B) Ploughing a field parallel to the contour lines.

    C) Ploughing a field in the direction that the water drains.

    D) None of these will help to prevent soil erosion.

    Correct Answer: B

    Solution :

    Ploughing a field parallel to the contour lines.


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