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  3. 6th Class
  4. General Knowledge
  5. Related to Competitive Exam

6th Class General Knowledge Related to Competitive Exam Question Bank Science and Technology

  • question_answer
    A piece of an apple when exposed to the atmosphere, turns brown. This is an example of

    A)  Physical change

    B)  Chemical change

    C)  Both A and B

    D)  None of these

    Correct Answer: B

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