2. Sample Papers
  3. SSC
  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-6

  • question_answer
    What is the intensity of sound in normal conversation?

    A)  10-20 dB         

    B)  40-60 dB

    C)  90-120 dB       

    D)  120-150 dB

    Correct Answer: B

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