2. Questions Bank
  3. 7th Class
  4. Science
  5. Physical and Chemical Changes

7th Class Science Physical and Chemical Changes Question Bank Physical and Chemical Changes

  • question_answer
    Rate of rusting of iron will be more in:

    A) Deserts             

    B) Coastal areas

    C) Polar regions                 

    D) All the above

    E) None of these

    Correct Answer: B

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