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Discussion :: World Geography

  1. The major events of Pre-Cambrian era include

    2. A.

     formation of crust, continents and oceans
    B.

     formation of crust, birth of oldest known rock, origin of life
    C.

     formation of present day atmosphere
    D.

     All of the above.

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    Answer : Option D

    Explanation :

    All of the above.

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