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  3. 8th Class
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8th Class Science Sample Paper Science Olympiad Model Test Paper-20

  • question_answer
    The slow process by which the dead plants buried deep under the Earth have become coal is called:

    A) Catenation                    

    B) Carbonisation

    C) Destructive distillation     

    D) Carbon cycle

    E) None of these

    Correct Answer: B

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