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7th Class Science Related to Competitive Exam Question Bank Natural Resources and Their Conservation

  • question_answer
    If the percolation rate of water of a particular soil sample is 20 mL/min, then how much time will 200 mL of water take to percolate completely into the soil?

    A)  800 s              

    B)  600 s  

    C)  200 s          

    D)         400 s

    Correct Answer: B

    Solution :

    Time taken by 20 mL of water to percolate = 1 min = 60 seconds Time taken by 200 mL of water to percolate = 600 seconds.


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