2. Sample Papers
  3. 4th Class
  4. Science

4th Class Science Sample Paper Science Olympiad Model Test Paper-18

  • question_answer
    Which one of the following is a biodegradable substance?

    A) Wooden pencil   

    B) Dried leaves

    C) Dead animals                

    D) All the above

    E) None of these

    Correct Answer: D

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