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  1. Which of the statements given above are correct?
    1. P - waves are the first seismic waves to reach a place
    2. S - waves travel only through liquids
    3. Arrival time of P and S - waves is used to locate the epicentre
    4. Richter scale is a logarithmic scale

    2. A.

     1, 2 and 3
    B.

     1, 3 and 4
    C.

     1 and 4
    D.

     3 and 4

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    Answer : Option B

    Explanation :

    The statements that are correct are that P waves are the first seismic waves to reach a place, Arrival time of P and S - waves is used to locate the epicentre and Richter scale is a logarithmic scale.

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