2. Questions Bank
  3. 8th Class
  4. Science
  5. Materials : Metals and Non-metals

8th Class Science Materials : Metals and Non-metals Question Bank Materials

  • question_answer
    Main source of man-made plastics is:

    A) Biogas              

    B) Crude oil

    C) Vegetable fibre

    D)        All the above

    E) None of these

    Correct Answer: B

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