9th Class Social Science Sample Paper Social Studies - Sample Test Paper-4

  • question_answer
    How does de-silting help in flood control?

    A)  By increasing the water holding capacity of the river

    B)  By not allowing the excess water to over flow

    C)  By building a silt fence around the perimeter

    D)  All of these

    E)  None of these

    Correct Answer: A


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